Please see [Transcriber’s Notes] at the end of this document.


SCIENCE AND PRACTICE
IN
FARM CULTIVATION.

BY

JAMES BUCKMAN, F.L.S., F.G.S.

LATE PROFESSOR OF GEOLOGY AND RURAL ECONOMY AT THE ROYAL AGRICULTURAL COLLEGE.

LONDON:
ROBERT HARDWICKE, 192, PICCADILLY.
1865.


COX AND WYMAN,
ORIENTAL, CLASSICAL, AND GENERAL PRINTERS,
GREAT QUEEN STREET, LONDON, W.C.


TO

JOHN CHALMERS MORTON, ESQ.,

The talented Editor of the “Agricultural Gazette,”

MANY OF THE FACTS AND OPINIONS ALREADY DETAILED
IN WHICH INFLUENTIAL JOURNAL
ARE HERE BUT REPEATED,

THIS WORK

IS DEDICATED

AS A SMALL TOKEN OF ADMIRATION AND RESPECT,

BY HIS FAITHFUL FRIEND,

THE AUTHOR.


CONTENTS.

——
PART I.
HOW TO GROW GOOD ROOTS.
CHAPTERPAGE
I.On the Origin of Root Crops[1]
II.On the Origin of Sorts of Roots[9]
III.On Trueness of Sorts in Roots[13]
IV.On Degenerate Roots[18]
V.Effects of Growing Seed from Degenerate Roots[23]
VI.On the Adulteration of Seed, more particularly of Turnips[29]
VII.On the Art and Mystery of Turnip-seed Adulteration[37]
VIII.General Conclusions[49]
——
PART II.
HOW TO GROW GOOD GRASSES.
IX.On the Nature of Meadows and Pastures[51]
X.On the Species of Meadow Grasses[56]
XI.On Meadow Plants other than Grasses[73]
XII.On the Weeds of Pastures[78]
XIII.On the Irrigated Meadow[87]
XIV.On the Laying Down of Permanent Pastures[92]
XV.On the Management of Permanent Pastures[98]
XVI.On the Management of Lawns[102]
——
PART III.
HOW TO GROW GOOD CLOVERS.
XVII.On the Nature and Properties of the Clover Family of Plants[109]
XVIII.On the Farm Species of Clovers[113]
XIX.On the Varieties of Red Clovers[121]
XX.On the Clover Allies[125]
XXI.On Clover Sickness[137]
XXII.On the Weeds of Clovers[148]
XXIII.On the Parasites of Clovers[156]
——
PART IV.
HOW TO GROW GOOD CORN.
XXIV.Nature of Corn[161]
XXV.Wheat: its Origin and Acclimatization[163]
XXVI.The Wild Oat as the Origin of the Cultivated Varieties[168]
XXVII.On the supposed Origin of Barley and Rye[176]
XXVIII.Epiphytical Parasites (Vegetable Blights) of Corn Crops[180]
XXIX.Insects (Animal Blights) affecting Corn Crops[192]
XXX.Science in the Cultivation of Corn[204]
XXXI.On Harvesting Corn[213]
——
PART V.
HOW TO GROW GOOD FENCES.
XXXII.On the Nature of Fences[217]
XXXIII.On the Plants for “Live” Fences[220]
XXXIV.On the Hearing and Planting of Hedges[227]
XXXV.Weeds of Hedge-row Fences[234]
XXXVI.On Hedge-row Timber[239]
XXXVII.On the Vermin of Fences[246]
XXXVIII.On the Management of Hedge-row Fences[254]
XXXIX.Covenants with regard to Fences, &c.[259]
——
PART VI.
HOW TO GROW GOOD TIMBER.
XL.On the Value of Timber for Ornament and Profit[265]
XLI.On the Kinds of Timber best adapted for different Situations[274]
XLII.On the British Oak[278]
XLIII.On the Chestnut and Walnut[291]
XLIV.On the Elm[296]
XLV.On the Ash, Beech, and other White-wooded Trees[302]
XLVI.On Soft-wooded Forest Trees[313]
——
PART VII.
HOW TO GROW GOOD ORCHARDS.
XLVII.On the Apple and Pear as Orchard Fruits[319]
XLVIII.On the Production and Choice of Fruit Trees[328]
XLIX.On the Gathering and Storing of Fruit[338]
L.On Cider-making and Management[345]
LI.On the Uses and Economy of Cider and Perry[351]
Postscript[357]

THE SCIENCE AND PRACTICE
OF
ROOT CULTIVATION.


CHAPTER I.

ON THE ORIGIN OF ROOT CROPS.

Few people who have studied the matter attentively but have arrived at the conclusion that those plants which we cultivate for their roots were not naturally endowed with the root portion of their structure either of the size or form which would now be considered as essential for a perfect crop plant. Thus the parsnip, carrot, turnip, beet, &c., as we find them in nature, have nowhere the large, fleshy, smooth appearance which belongs to their cultivated forms; and hence all the varieties of these that we meet with in cultivation must be considered as derivatives from original wild forms, obtained by cultivative processes; that is, collecting their seed, planting it in a prepared bed, stimulating the growth of the plants with manures, thinning, regulating, weeding, and such other acts as constitute farming or gardening, as the case may be.

Hence, then, it is concluded that such plants as are grown for their roots have a peculiar aptitude for laying on tissue, and thus increasing the bulk of their “descending axis,” that is, that portion of their structure which grows downwards—root. Besides this, they are remarkable for their capability of producing varieties—a fact which, united with a constancy in the maintenance of an induced form, renders it exceedingly easy to bring out new sorts which will maintain their characteristics under great diversities of climate, soil, and treatment.

The facility with which different sorts of roots may be procured can readily be understood from the many varieties, not only of turnip—which may perhaps be considered as an original species—but also of swede, which is a hybrid of the turnip and rape plant. Of the former we have more than thirty sorts grown by the farmer, and as many peculiar to the garden; whilst there are probably more than twenty well-recognized sorts of swedes. Of beets, with mangel-wurzel, we have almost as great a variety; so also of carrots. Of parsnips we have fewer varieties, to which may now be added the new form called the Student parsnip, the growth of which is so interesting that we shall here give a short history of its production, as an illustration of the origin of root crops.

Figures 1 and 2.—Roots of Wild Parsnips. Natural size.

In 1847 we collected some wild parsnip seed from the top of the Cotteswolds, where this is among the most frequent of weeds. This seed, after having been kept carefully during the winter, was sown in a prepared bed, in the spring of 1848, in drills about eighteen inches apart. As the plants grew they were duly thinned out, leaving for the crop, as far as it could be done, the specimens that had leaves with the broadest divisions, lightest colour, and fewest hairs. As cultivated parsnips offer a curious contrast with the wild specimens in these respects, we place the following notes, side by side, on the root-leaves of plants of the same period of growth.

1st. Wild Parsnip.2nd. Student Parsnip.
Ft.in. Ft.in.
Whole length from the base of the petiole to the apex of the leaf08 Whole length from the base of the petiole to the tip of the leaf20
Breadth of leaflets0034Breadth of leaflets3014
Length of ditto01 Length of leaflets0612
Petiole and leaflets, hairy. Colour, dark green. Petiole and leaflets without hair. Colour, light green.

We have before remarked that neither in size nor form are the wild roots at all comparable with the cultivated ones. Our [figures] 1 and 2 were taken from fine roots of the wild parsnip of the first year’s growth; that is to say, just at the same time as a crop parsnip would be at its best. They were purposely taken from specimens obtained from the same district as the seed with which our experiments were commenced.

Our first crop of roots from the wild seed presented great diversities in shape, being for the most part even more forked than the originals, but still with a general tendency to fleshiness. Of these the best shaped were reserved for seeding; and having been kept the greater part of the winter in sand, some six of the best were planted in another plot for seed. The seed, then, of 1849 was sown in the spring of 1850, in a freshly-prepared bed, the plants being treated as before, the results showing a decided improvement, with tendencies in some examples in the following directions:—

1st. The round-topped long-root, having a resemblance to the Guernsey parsnip. (Panais long of the French.)
2nd. The hollow-crowned long-root. “Hollow-headed” of the gardener. (Panais Lisbonais type.)
3rd. The short, thick turnip-shaped root. “Turnip-rooted” of the gardener. (Panais rond form.)

These three forms were all of them much mis-shapen, with forked roots, that is, fingers and toes; but still each of them offered opportunities of procuring three original varieties from this new source.

As an example of progress, we offer the following engraving of a specimen of our Round-topped parsnip of 1852. [Fig. 3].

Fig. 3.—Round-topped Parsnip, five generations from wild root.

This it will be seen has strong, fleshy forks, and a tendency to form divided tap-roots; otherwise the shape is greatly improved, and the skin is tolerably smooth.

At this time our stock was for the most part fleshy and soft on boiling; the flavour, too, though much stronger than that of the usual esculent parsnip, was rather agreeable than otherwise.

This matter of flavour is a subject of interest, as most lovers of the parsnip, as a garden esculent, had got to complain of this root becoming more and more tasteless. That this was so our own experience most fully confirms; we have now, however, mended this root very materially in this respect.

Our experiments were only carried on with examples of the Hollow-crowned form, which following out from year to year, we at length obtained so perfect in form, clean in outline, delicate in skin, and unexceptionable in flavour, that we were induced to cause its seed to be distributed through the medium of the trade.

In 1881 we sowed a parcel of seed in our own garden obtained from the Messrs. Sutton, after having received from them the following notes upon the growth of the roots in their grounds:—

We are happy to tell you that in lifting some of each of all the varieties of parsnips in our trial-ground, your “Student” was decidedly the best shape, varying in length, but always clean and straight.

Fig. 4.—Student Parsnip of 1861. Two-thirds of natural size.

The engraving ([Fig. 4]) is taken from our garden stock of 1861, as being a common shape of this new variety. It is not quite so long and slender as the usual Long-horned parsnip, but its clean unbranched outline and solidity of structure recommend it as a good variety, whilst its flavour has been highly extolled by the lover of this, to some, favorite root. In size it is scarcely large enough for a field crop, but though not at present recommenced for the farm, its history may well serve to explain the origin of crop plants, as derived from the cultivation and improvement of wild species.[1]

[1] It may here be noted that the Student parsnip took the first prize for this root at the International Show at the Horticultural Society’s Gardens in 1862.


CHAPTER II.

ON THE ORIGIN OF SORTS OF ROOTS.

As crop plants are derived from wild ones, as the effect of cultivation, it follows as a matter of course that these will be varied, both in form and constitution, according to the circumstances under which they have been produced. Thus we may expect that any attempts to ennoble a wild root in different countries would not, even if successful, be sure to bring about the same results. Much depends even upon the individual root with which our trial may be started, and more upon the judgment employed in selecting the stock from which the experiments are to be continued.

That position and soil may make a great difference may be inferred from the fact that the attempts to improve the wild parsnip and carrot have met with varied success. De Candolle is reported to have tried to improve the carrot with success, whilst with the parsnip he utterly failed; whilst Professor Lindley, in Morton’s “Cyclopædia of Agriculture,” tells us that M. Ponsard has ascertained that “the wild parsnip becomes improved immediately when cultivated, and that experiments in improving its quality promise well:” how well, indeed, may be seen from the foregoing chapter. But still, we utterly failed with the wild carrot. Having collected seeds of the Daucus Carota (the common wild carrot) from some fine specimens growing on the road-side between Cirencester and Cheltenham, they were subjected to experiment at the same time as the parsnip, but with little, if any, favourable result. Upon this plant Professor Lindley observes as follows:—

That the hard-rooted wild carrot is really the parent of our cultivated varieties, remarkable as they are for the succulence and tenderness of their roots, has been experimentally proved by M. Vilmorin, who succeeded in obtaining by cultivation perfectly tender, eatable roots, from seeds saved from plants only three or four generations off the wild species.

Still, a modern French naturalist of great experience, M. Decaisne, tells us that he has tried to ennoble the wild carrot, and has not succeeded; and from this he draws the conclusion that our cultivated forms were created specially for the use of man. As we should suppose that very few botanists agree to this theory, we shall let the facts we have already brought forward stand in maintenance of its opposite, namely, that cultivated forms are derived from wild species often apparently very different; but at the same time it may be well to state, that in all probability some of the discrepancies of experimenters may have arisen from some confusion in the species operated upon.

In 1860 we gathered some seed of the Daucus maritima (sea-side carrot) at Bognor, which, on being sown in a prepared plot the following spring, certainly resulted in fairly succulent roots, which on being cooked were pronounced by our party of four to be excellent. While on this subject, it may be mentioned as not a little remarkable, that so many of our garden esculents should be derived from sea-side plants. Thus, probably carrot, but certainly celery, sea-kale, asparagus, and cabbage. This would seem to point to the fact that cultivation requires a complete change of the circumstances necessary to maintain a wild condition; and hence cultivated plants can only be kept up by the labours of a cultivator.

Now, as regards the sea-side carrot, we are after all inclined to the belief that it is the parent of the cultivated varieties, whilst, on the other hand, we view the Daucus Carota (the wild inland carrot) as a probable descendant from the cultivated or garden stock; and if this be so, the Daucus maritima is the original species from which both the wild and cultivated races have descended. Bentham, indeed, carries this view a little further, the following remarks tending to throw doubts upon the carrot in any form as being a true native. Under the heading of Daucus Carota he says:—

Probably an original native of the sea-coasts of modern Europe, but of very ancient cultivation, and sows itself most readily, soon degenerating to the wild form, with a slender root, and now most abundant in fields, pastures, waste places, &c., throughout Europe and Russian Asia; common in Britain, especially near the sea. Flowers the whole summer and autumn. A decidedly maritime variety, with the leaves somewhat fleshy, with shorter segments, more or less thickened peduncles, more spreading umbels, and more flattened prickles to the fruits, is often considered as a distinct species.

Seeing then that crop plants are derivatives from a wild stock, we can readily understand how the varying circumstances attendant upon the development of the former should tend to the production of varieties, and this merely as the result of the treatment of the fairly derived legitimate seed. If, again, we take these variations for the purpose of obtaining hybrids, we need not wonder at the infinite variety of sorts which can be brought about, but rather that any sort could be maintained in that trueness of character or in that state of permanency which we sometimes find to be the case.


CHAPTER III.

ON TRUENESS OF SORT IN ROOT CROPS.

The importance of trueness and purity of seed arises from the evenness of growth of a good genuine strain; while if this quality be wanting we have some parts of our crop growing well, whilst others get on but poorly. Thus a free-growing plant beside one over which it has got the advantage, maintains it for the most part through the whole period of growth. Again, some sorts are of value for being early, others for lateness of growth, and some kinds are better fitted for early than late sowing; if, therefore, we have a mixture in these respects, we may at least expect a partial failure; for whichever is best for our purpose, if mixed will be accompanied by those which are not so good. A want of trueness to sort may arise principally from the following causes:—

1st. Want of selection in seeding bulbs.

2nd. Hybridization.

3rd. A mixture of seeds.

1st. The propriety of selecting the specimens from which seed is to be grown is admitted by all: by the seedsman, who always advertises his turnip and swede seed, for example, as being “from selected bulbs;” and by the farmer, as this announcement is only made to induce him to buy. It is not only important that the roots should be selected, but that they should be stored and then planted in a fresh soil; for as these latter are among the cultivative processes by which sorts have been obtained, so should they be repeated in order to ensure a continuance of the induced condition. Seeding upon the same soil and in the same bed in which the seed is sown is hardly the way to keep up a form induced by cultivation, as this is exactly what would be done by the plants in a state of wildness.

In selecting roots for seeding, care should be taken to choose good-shaped examples, in which a clean unbranched bulb, not too large, with a small tap-root and a small top, confined to a single central bud; a branched root and a many-headed top being true signs of degeneracy. And no less so is neckiness in swedes and mangels, as well as a coarse corrugated skin in roots of all kinds.

Taking such points as these into consideration, how absurd must appear most of the huge mis-shapen roots to which prizes are usually awarded at shows, where the specimens are chosen for size, and trimmed up with the knife, to make them look more presentable. As an evidence of the mistaken principles upon which prizes are awarded to bundles of roots, let any one seed such examples, and we will venture to assert that such seed would produce a large proportion of degenerate examples, without affording so good a crop as would seed, from middle-sized but well-shapen specimens.

2nd. Some of the forms of roots, and more especially those belonging to the Brassicaceæ, such as turnips and swedes, seem to have a wonderful facility for hybridizing; and this not only to the extent of one sort of turnip with another, but sports may be caused by the fertilization of the turnip with rape and its congeners. Indeed, the hybrid with turnip and rape is doubtless the origin of the Swedish turnip; but there is reason to believe that mixtures may accidentally be made with such wild plants as charlocks and mustards, the growth of which in the vicinity of a seeding crop tends to the production of degeneracy. Seeding-patches, then, and the ground about them, cannot be kept too clean.

Again, if trueness be aimed at, there should be no mixture of sorts in seeding examples; all of the same kind should be selected for seeding-plots, as even one or two of a wrong sort may result in a very mixed sample, as it would seem that sometimes strange plants exert more than ordinary influence.

Of course, the putting seeding-patches of different sorts side by side is to be reprehended. If more than one sort be seeded in a season, it is advisable to place the patches as remote from each other as possible. And we would here remark, that, for seeding, the roots should, as a rule, be farther apart than when grown for bulbs, both in rows and in sets; as, if too close, the stems grow up thin instead of robust, and a smaller seed, with a tendency to the growth of smaller roots, will be the result.

3rd. Mixtures of seeds should be avoided for the reason assigned, that “sorts” do not usually grow evenly; and when one sees (as is by no means infrequent) a patch of swedes overshadowed by a mixture of some large early turnip,—the Tankard, for example, our crop of swedes will certainly suffer for it, even supposing the turnip to be as useful as the swede, which is seldom the case.

Mixtures, again, do not come up at the same time; sorts may differ in this respect, but especially do old and new seeds vary as to their germinating powers: two-year-old seeds taking four or five days more to come up than a new sample; thus giving a greater chance for the ravages of the flea-beetle than where the seed all comes up quickly.

Now, as a practical application of these remarks, we here quote from an article in the Agricultural Gazette of May 24th, 1862.

Who among seedsmen does not profess to offer the seeds of swedes and turnips from selected bulbs? And though it is quite true that the practice is not so universal as is the profession of it, yet the general assumption of its being so on the part of seed growers and sellers is an admission that it would be for the advantage of the buyer of seeds were the roots from which seeds are to be grown carefully selected. And on the other hand, let the observant agriculturist take a journey on any of our great lines of railway (in early summer), and he will be struck with the many patches of bright yellow flowers which he will not fail to notice on either hand. In nine cases out of ten, these are fields or portions of fields of turnips, either the Swedish or common kinds, which, from the abundance of keep, it has been thought would be more profitable to seed than to eat off, especially as they have so rapidly grown out of the way. Are these patches of selected bulbs? We happen to know, from a more than ordinarily careful examination, that not one per cent. of seeding-patches are from selected roots; but they are seeded just as they grew, and we do not know of a single instance where in such seeding the objectionable roots have been removed; but we do know of plenty of cases where the worst part of a field has been saved for seed, doubtless as the most profitable way of dealing with it under the circumstances wrought out by the spring of 1862.

Of course, this will all come into the market, and too much of it, under a stereotyped declaration of ‘from selected bulbs.’ That all the seed grown in 1862 will be sown in 1863 is simply impossible; but no matter, it will find a market somehow, some time. With such facts as these before us, who can wonder that any plant should become degenerate? Let some of the seed of this year be watched,[17] and we will answer for its evil results; and if these be facts, it then behoves the farmer to look well to pedigree in the matter of his seed.

But even here, his forethought must not end; for however select the parent may be, there is still something in ‘bringing up;’ for, however good the sort of turnip, we shall not grow its seed in perfection by selection merely, but we should transplant well-chosen roots, and so put them in a new scene, away from subjects which might contaminate them. This is indeed to bring them up in a good school, for which their seed will amply repay the trouble and expense.


CHAPTER IV.

ON DEGENERATE ROOTS.

If the reader revert to page 6, [Fig. 3], he will see that the progress from a wild to a better root-form is marked by a more fleshy, but still a much forked, or finger-and-toed example. Now as it is held that a clear unbranched outline is essential to a well-formed root crop of every kind, whenever a crop becomes fingered-and-toed, it is looked upon as a disease. It must be understood that we are here speaking of finger-and-toe as distinct from anbury, which latter is a decidedly diseased condition, whether caused by insects or resulting, as some affirm, from a defect in the soil.

The difference in the two states may be briefly summed up as follows:—

Finger-and-Toe. Anbury.
Root simply branched or forked, with tapering fleshy rootlets; occurs in turnips, parsnips, carrots, and mangold. (See [figs. 1], [2], [3], [5], [6], [7], [8], [9], [10].) Root infested with irregular nodular protuberances, or with tumours suspended by roots, having very much the aspect of rows of ginger; occurs in turnips alone. (See [fig. 12].)

The example of a root at [page 6] is a good form of a parsnip progressing from wildness to a better cultivated form. We now offer an engraving ([fig. 5]) of a hollow-crowned crop parsnip, fingered-and-toed, and evidently of a very objectionable form, as it will be seen on comparison how nearly alike are [figs. 3] and [5].

Fig. 5.—Finger-and-toed degenerate Parsnip. Half nat. size.

Now, as every degenerate crop of parsnips will be found to offer a large proportion of such roots as [fig. 5], we seem bound to conclude that, inasmuch as our [fig. 3] represents a root in progress towards ennobling, so [fig. 5] is that of a root declining to its level,—in other words, degenerating; seed, therefore, that produces such roots can only come from a poor stock.

Our next fig. ([6]) is of a parsnip that had prematurely flowered. Sending up flowered stems the first year, in the case of a biennial, can only be looked upon as an instance of degeneracy. Plants that “run,” as it is termed, being comparatively useless, the best use, indeed, that can be made of them being that of pulling them up and giving them to the pigs.

Fig. 6. Carrot of First Year run to Seed. Half nat. size.

Now this propensity is always accompanied with forked roots, more especially in carrots, which roots are even more degenerate than those represented in [figs. 3] and [5], as those were fleshy and succulent; but when the roots of runners are examined, they are always found to be tough and woody, and, in fact, they very nearly resemble the wild examples.

Fig. 7. Forked Carrot run to seed.
Half nat. size.

[Fig. 7] is taken from a carrot that has run, and its rough, woody, nodular, forked root is fully apparent.

Fig. 8. Forked Belgian Carrot. Half nat. size.

[Fig. 8], from a specimen of White Belgian carrot, forked as it is, is yet not uncommon; still, here the divided roots are succulent. This differs from the annual or run-to-seed roots, as this is a real biennial; but its other mark of degeneracy, besides that of finger-and-toe, was in its possessing a top (removed for experiment before the drawing was made) of many buds or heads. Now a multiheaded root, whether in turnips, carrots, parsnip, or mangel, is another sign of degeneracy, especially in the carrot or mangel, as the wild examples are remarkable for this condition; and in ennobling these roots, one of the difficulties is to get rid of this propensity. Hence, at root shows all forked examples of bulbs, multiheaded and necky examples, should be rejected; they are, however, sometimes made so fat with manuring that they pass muster for size, which indeed seems to be the great quality required at shows: which is a serious mistake, as being no sort of criterion of the state of a field of roots, unless it be an adverse one: as a 10 lb. malformed root, with its huge top, will require more ground to grow than will half a dozen roots averaging 2 lbs. each; whilst the latter are certain to be better and will keep longer.


CHAPTER V.

EFFECTS OF GROWING SEED FROM DEGENERATE ROOTS.

That the seed of malformed roots would be likely to produce a poor crop was a subject admitted by all; but neither the form nor extent of the mischief resulting therefrom had been stated upon the authority of exact experiment. In order, therefore, to arrive at direct evidence upon a point upon which so much of practical importance depends, we carefully carried out the following experiments.

Fig. 9. A Malformed or Degenerate Parsnip. Two-thirds of nat. size.

On the 26th of March, 1860, we selected two roots from a store, namely, one of a Student parsnip from our own stock and one of a Skirving’s swede. Before committing these to the ground for the growth of seed, we made careful portraits of the two roots, of which that of the parsnip will be found in [fig. 9], that of the swede in [fig. 10].

Fig. 10. A Malformed or Degenerate Swede. Two-thirds of nat. size.

Now had we been going to grow the best of seed, we should of course have selected the best-shaped roots for our purpose; but in this case, as will be seen, the most viciously formed examples were chosen.

Both of the examples whose portraits we have here given, were planted in our private garden (where, it is right to say, they were the only seeding specimens), in due time their seed ripened, which was carefully collected and stored.

Early in April, 1861, these seeds were sown in our experimental plots, without manure, in the following order:—

Plot a. Seed obtained from the malformed parsnip, [fig. 9].
b. Seed of Student parsnip of the same year as that of plot a.
c. Seed of malformed swede.

The plot b was sown by way of comparison, and we can only regret that no plot of good swede seed was sown with the same object, and we must, therefore, compare with a piece of swedes in an adjoining field.

The following are the tabulated results:—

TABLE OF RESULTS OF EXPERIMENTS.

lb.oz.
Plot a.75 roots, forming the crop from seed of the malformed parsnip ([fig. 8]) weighed in all -74
Plot b.63 roots forming the crop from seed of good Student parsnips -14 0
Plot c.70 roots of swedes from seed of malformed plant ([fig. 10].) -198
70 roots from a row in the field, at a distance of about 30 yards -350

The roots from plot a may be described as small, though not so much fingered-and-toed as we had expected; still there was only about half the crop when compared with plot b, which latter, indeed, was only small in weight, which may be accounted for from being grown without manure. During their progress of growth the difference was very perceptible—the small leaves of a contrasting most unfavourably with the broader, brighter coloured ones of b.

As regards the swedes, they were indeed a very poor crop, presenting all the evils of degeneracy—neckiness, for which it will be seen that their parent was distinguished—want of a bulboid form; none of the 70 roots being better than a thin tap-root, and these were forked, shapeless, and fingered-and-toed in endless variety. Their spindle-shaped roots were quite remarkable, and they were the rule, although in good seed, however bad the soil, they would have been the exception. Those in the field hard by were bulboid, and averaged half a pound each—no great weight, as the land in which they were grown is only second-rate. They, however, were grown with manure, to which, of course, much of the difference is due, and yet not so much as may fairly be imputed to the difference in seed. From these experiments we conclude:—

1st. That a degenerate stock will, as a rule, result from the employment of degenerate or badly-grown seed.
2nd. That besides ugly, malformed roots, degenerated seed does not produce nearly the weight of crop of good seed, under the same circumstances of growth.
3rd. That by means of selection we may produce roots that are well-shaped, and have the capabilities of affording the best crop.
4th. That by designedly selecting malformed degenerate roots for seeding, we may produce a seed that will result in as great or greater degeneracy.

“That these are important conclusions”—we quote from the Agricultural Gazette—“few will be disposed to deny. They have most interesting bearings on the subject of vegetable physiology, and consequently should be studied by the farmer.”

It is a practice much to be desired, that not only should a proper choice be made of seeding examples, but that there be a change of situation, and, if possible, a time of storage before being planted for seed. These are all cultivative processes, and to the care with which they are carried out must we look for permanence in our derivative root-crops.

It cannot be too strongly urged, that, as an efficient sort of root has only been arrived at as the result of great care—that is, by successful breeding,—so every care must be taken for its maintenance. Defect in seed results in defect in the produce of that seed; and downward tendencies of this kind are common results of even most careful cultivation. With carelessness in this respect we must not be surprised at rapid degeneracy.


CHAPTER VI.

ON THE ADULTERATION OF SEEDS, MORE PARTICULARLY OF TURNIPS.

In order to make the experiments which illustrate this chapter tell their tale to the fullest extent, we would set out with the two following postulates:—

1st. All well-grown, well-preserved new seeds should be capable of germinating to the extent of at least 90 per cent.
2nd. Seeds in general, and more especially turnip seeds, as usually delivered to the farmer, are generally incapable of germinating to the extent of from 25 to 30 per cent., and very frequently even more.

We shall hereafter see, that this want of germinating power is too often the result of mixing charlock, Indian rape, and the like, by way of adulteration, which latter are killed to prevent “their telling tales.” But to our experiments:—

A number of tin cases were made of the following proportions: Length, 15 inches; width, 10 inches; depth, 4 inches. These, which were well perforated at the bottom, were divided across into ten equal parts, each of which was filled to within an inch of the rim, with a mixture of fine mould and silver sand. In these, seeds of different sorts of turnips were sown, and the whole was put into a bed of sand in our forcing-house. We could, however, see no difference in the results, nor could we trace any in the germinal or cotyledon leaves of swedes, turnips, or charlock. But, of course, samples of turnip-seed could not be tested as to freedom from charlock by this experiment, because charlock is killed before being mixed with the turnip.

Now, seeing that we could get no trustworthy results by this kind of experiment, it struck us that our germination-pans might be used to test the germinating power, not only of the samples we had obtained for a different purpose, but of others also. We first, then, counted a hundred of each of the following sorts of seeds, and carefully dibbled them in a fresh mixture of soil, in September, 1860; the results, which were as carefully noted from day to day, are shortly given in the following table:—

Table 1. Germination of Ten Sorts of Turnips.

No.Name, Copy of Label.Came up
per cent.
No. of
Days.
1Mousetail, 18599610
2Pomeranian, or White Globe, 18598611
3Nimble Green Round, 1859967
4Lincolnshire new Red Globe, 1860909
5Yellow Tankard, 1859929
6Smart’s Mousetail, 1860987
7Green-topped Stone, 1860848
8Sutton’s Imperial Green Globe, 1860989
9Green-topped Scotch, 1860909
10Early Six-weeks, 18609010
Came up=92
Failed=8

We would remark upon these results, that the temperature of the house was kept at between 60° and 70°, and the greater part of the seeds came up in four days; the numbers for the days, then, have reference to the time occupied before all that would germinate came up. Now this table is not a little instructive, as showing that samples of turnip-seed can be got in which only a very few of the seeds fail to germinate; but as experience had taught us that these samples by no means represented the usual market condition of turnip-seeds, in order to test this we begged to be allowed permission to take samples direct from the bags of a retail seedsman as they were exposed in his shop, and the following results will speak for themselves.

It should, however, be here premised that the samples were not grown by the seedsman, but were said to be just as received from the wholesale dealers.

Table 2.—Germination of Ten Sorts of Turnip Seeds from Market Samples.

No.Copy of Label.Came up
per cent.
No. of
Days.
1Norfolk Green round769 -Taken from the bags by the Author.
2White Globe7815
3Early Grey-topped Stone8010
4Red Tankard, or Pudding6211
5Orange Jelly5215
6Norfolk Round Red8010
7Purple-topped yellow Scotch7611
8White Dutch6412
9Early Green top6413
10Yellow Tankard Pudding4812
Came up=68
Failed=32

Eight samples of swedes from the same source are in the next table associated with a sample of Skirving’s swede, grown in our own garden (8), of the following table, and another of turnip (9), grown on a neighbouring farm. We may remark upon the last-named sample, that we had observed the growth of this seed, which was from a very poor crop, half of which had decayed on the ground with the early frost of 1860, and the rest, without transplanting or selection of any kind, was allowed to seed. Now, as this whole crop was so degenerated that it ought never to have been seeded at all, we were anxious to get some of the seed from the bulk, in order to test from its growth this year whether it will not bring forth a degenerate progeny. Its germinating qualities will be seen from the table, and yet it is by no means the worst sample, which seems to show that the others are not naturally bad, but so by mixture.

Table 3.—Germination of Swedes, &c., from Market Samples, &c.

No.Copy of Label.Came up
per cent.
No. of
Days.
1Ashcroft’s improved Purple Top58 12 -Taken from the bags by the Author.
2New Bangholm96 10
3Skirving’s Liverpool62 16
4Green Top78 10
5Marshall’s improved Purple Top90 10
6Hewer’s Improved White68 17
7Green Major86 10
8Skirving’s Swede (own grown)96 10
9Green Top Turnip, neighbour’s farm78 6
10Fosterton Hybrid Turnip64 10
Came up=77·6
Failed=22·4
Failed of seedsman’s specimens=24·8

Now, as “0 0 0” seed is supplied to customers under the designation here given, for the purpose of mixing, it is of little consequence whether it be used by the wholesale house or the retail dealer; if, however, it be employed by both, we should, indeed, get a bad sample.

As regards the seedsman’s samples in the [Tables 2] and [3], we are quite unable to give exact details of their history, but we have reason to believe that the stock whence they were taken was purchased in the ordinary course of business from different “wholesale houses,” as, though the tradesman whence the samples came combines the business of “nurseryman” with that of seedsman, we happen to know that he is not a grower of seeds, at least of turnip seeds. The average, then, of eighteen samples of turnips and swedes from this source is that 28 per cent. are non-germinating seeds. The next samples are from people in a large way of business, who are not mere retailers, but to whom we must accord all the immunities of the trade as seed-growers, wholesale and retail seed-merchants, &c.

Before giving the tables with the results as regards these samples, it is necessary to state that they were not sent to us direct, but were forwarded through a farmer to whom they were sent in the ordinary small packet samples.

We would further remark, that as all that would germinate took so few days about it, being an average of six days, whilst those of [Table 1], being seeds partly of 1859 and partly of 1860, occupied nine days, and those of [Table 2], whose date we do not know, eleven days; in all probability the seeds in question were tolerably new, most probably of the last seed season.

Table 4.—Germination of Ten Samples of Turnips.

No.Copy of Label.Came up
per cent.
No. of
Days.
1Green Globe62 8 -Turnips from sample papers communicated.
2Dale’s Hybrid84 4
3Red Globe90 6
4Orange Jelly100 4
5White round, or Norfolk42 5
6Green Tankard50 6
7Scarisbrick (sic)88 11
8White Globe74 4
9Golden Yellow82 4
10Green round30 6
Came up=70·2
Failed=29·8

The specimens in next table were obtained in like manner as those of [Table 4].

Table 5.—Germination of Samples of Common and Swede Turnips.

No.Copy of Label.Came up
per cent.
No. of
Days.
1White Stone or Stubble46 6 -Swedes and Turnips from sample papers communicated.
2Red Tankard60 5
3White Tankard60 4
4Yellow Tankard88 5
5Green Top Yellow Scotch84 6
6Purple Top ditto62 8
7Tankard-shaped Swede74 7
8White-fleshed ditto84 8
9Skirving’s Improved Purple Top ditto64 8
10Lawhead Green Top80 7
Came up=70·2
Failed=29·8

Of these samples we see that within a fraction of 30 per cent. is the average of non-germinating seeds, and this is only so low on account of two or three unusually good samples, the general range being from 20 to 30 per cent. of non-germinating seeds for the last twenty samples.

If we compare No. 5, [Table 2], with No. 4, [Table 4], we see a difference in the Orange Jelly Turnip; in the former little more than half came up, in the latter every seed. This is of importance, as showing what genuine seed may be, the latter being doubtless as unmixed as the former was mixed.

Now as regards the charge of mixing, we are not going to make it without some evidence. In looking over the tables we have now given, it will be seen that genuine seed has but a small per-centage of non-germinating seeds—say from 5 to 10 per cent.; but not only the examples herein referred to, with hosts of separate ones which have fallen under our notice, show a general amount of dead seeds, of from 20 to 30 per cent. For these figures compare [Table 1] with [Tables 2], [3], [4], and [5]. In those of the first lot the samples were sent direct to us from a seedsman, and their behaviour shows us clearly enough that good seeds are to be obtained, but the other tables are as clear that from some seedsmen, at any rate, though inferior samples, they are as good as are actually sold.

That seeds are mixed we have, then, good internal evidence; but we are also in possession of facts more conclusive upon this important point, and we shall in this next chapter endeavour to enlighten our readers as to the art and mystery (especially) of turnip-seed adulteration.

Confining our present remarks to turnip seeds, we assert that if farmers will try the germinating powers from the bulk of the seed which may be sent to them, they will find pretty nearly one-third to be rubbish. It is of no use to try from samples, except in comparison with bulk; and if all the farmers of Great Britain did this, and would communicate the results, what an extraordinary tale would be unfolded, more especially if the evidence be completed by notes on the purity or otherwise of the crop grown from such seeds!


CHAPTER VII.

ON THE ART AND MYSTERY OF TURNIP-SEED ADULTERATION.

It has already been shown that turnip-seed is largely adulterated; it remains now to point out the nature of the admixtures, which may be summed up under the following heads:—

1st. Old seeds are mixed with new.
2nd. Charlock, “Indian rape,” and other seeds of the Brassicaceæ, are mixed with genuine seed.

1st.—The crops of seeds vary so much in their produce per acre, in one year, as compared with another, that in most years there is a superabundance of some kinds and a scarcity of others.

Now, as most seeds are of comparatively little use except for sowing, the surplus stock can only be disposed of at extremely low prices. Accordingly some wholesale seedsmen buy large quantities in the “glut season,” as it is termed, and store them until the same articles fail in crop. For instance, swede and turnip seeds, 1857 crop, could be bought everywhere at from 15 to 20 shillings per bushel; but owing to the destruction of the roots in the winter of 1859, seedsmen in 1860 had to pay the growers 50s. per bushel. Now, in 1860 there were wholesale houses selling those seeds which they had by them for the same price. Such people can, it is true, warrant their seeds to be genuine, as they well know how much turnip-seeds deteriorate by keeping; the mixing of this with good seed is still a species of adulteration; and if not mixed at all, we can then only say that the evil is so much the greater.

As an evidence of the amount of deterioration caused to turnip-seeds by keeping, we here re-produce the table of trials of ten sorts of good seeds made in September, 1860, in contrast with experiments from the same sample, in the same month of the present year (1862), premising that the samples were kept in what we should consider a dry but not too warm a temperature.

Table 6.—Germination of Ten Sorts of Turnips.
No.Name. Copy of Label.Came up 1860.
Percent.
Came up 1862.
Percent.
1Mousetail, 18599646
2Pomeranian or White Globe, 18598644
3Nimble Green Round, 18599694
4Lincolnshire New Red Globe, 18609058
5Yellow Tankard, 18599262
6Smart’s Mousetail, 18609892
7Green-topped Stone, 18608488
8Sutton’s Imperial Green Globe, 18609880
9Green-topped Scotch, 18609086
10Early Six-weeks, 18609070
Came up (average)=9272
Failed=828

These figures are interesting as showing that though the different sorts are not affected equally, yet the seed of 1859 failed on the average to the extent of 38.8 per cent., as against 24.6 for the seed of 1860, and 28 as the average of the whole samples. Such is the great difference between two and three year old seeds.

2nd.—Even the above genuine seeds (!) are not unfrequently mixed, and we may now examine the nature of some of these mixtures. Charlock and Indian rape are all prepared for this purpose: that is to say, they are rendered incapable of germinating before mixture—“Dead men tell no tales.” Now rubbish, so prepared, is well known in the trade as 000 seed. Under this denomination all seedsmen know it, and it can be procured by the trade at about 7s. per bushel.

With respect to this 000 seed, we direct attention to the following letter addressed to a most respectable firm.

Southampton, April 27, 1860.

Gentlemen,—Being in possession of a new and improved method of killing seeds without the use of any chemicals, so that the seed when in a 000 state has not that unpleasant smell it has when killed by the old method, and does not look perished if it be crushed. A man by the new process may kill ten or twelve quarters per day, and the apparatus is so constructed that it is impossible for a single seed to leave it alive; and one great advantage is, that if you want a sack of 000 seed in a hurry you may kill a sack of rape or turnip, or any seed, and have it fit for use in an hour. Seed in the process of killing increases in measure and weight, and when you send it out to be killed, of course, the seed-killers keep the extra weight and measure. If you think it worth your attention, I will send you a small working model, so that you may kill a few pounds of kale or cauliflower, or any small seeds in a few minutes, and instructions for making a large one on receipt of a Post-office order for £2.

Yours truly,

——

To this the Messrs. Sutton append the following remarks:—

The writer of the above being unknown to us, we had the curiosity to call at the address given, and ascertained that it was no “hoax,” but was assured by the “inventor” that he had supplied several tradesmen with the apparatus, and that he was formerly in the seed trade himself. We may add, that we have since heard from the same individual at another sea-port town to which he has removed.

Having got possession of this circular, and being desirous of becoming acquainted with so notable an invention, we lost no time in setting on foot a negotiation for the possession of the secret, and having traced the inventor in his removal from Southampton to Gosport, we then had letters addressed to him upon the subject, and, if promises had been of any avail, we might possibly at this time have been in possession of a very improved and expeditious method of making 000 seeds, only that we have learnt the undesirable nature of pay beforehand.

Our next inquiry was for a sample of 000 seed itself; but, although it is well known in the trade, we have hitherto failed in procuring it. We had hoped that our seedsmen might have been able to procure some through some of their friends. The result was, that we made application to a most respectable London firm, receiving the following reply:—

London, February 27, 1861.

Sir,—In reply to your favour received this morning, we take leave to say that we shall have pleasure in complying with your request for a sample of 000 turnips, if we can obtain it. But we do not keep it ourselves, nor do we know the parties who prepare it, it being something of a trade secret. We will, however, apply to some of our friends here to let us have a small quantity, but doubt if they[41] will let us have it, as it is a matter they are rather chary respecting, and although perfectly well known and understood in the trade, they do not care to have it known beyond, and our asking for a small quantity will be sure to lead to the question, “What do we want it for?” We could obtain a large quantity without hesitation.

We remain, &c.,

——

The sentence we have placed in italics will be quite sufficient to show how well the matter of 000 seeds is understood in the trade, and how easy it is to get bushels of it, no questions being asked, while a small quantity, required only for investigation, may be refused.

It appears, then, that the machinery exists by which any one in the seed trade may quietly and easily commit enormous frauds. And it is plain that the very notoriety of this machinery, together with the condition of many of the samples of seed which we have examined (see [Chap. VI.]) prove that this machinery actually is employed by many seedsmen to the great injury of their customers.

We cannot, then, be doing wrong in urging any one to make trial of the seeds he is about to buy before he sows them, or even before he purchases them. Where the experience of a number of years already exists, the character of the seedsman is a guarantee for the good quality of his goods, and experience of this kind is indeed a more perfect carrying out of the system of preliminary trial or experiment, which we recommend especially to all new customers.


CHAPTER VIII.

ON THE INJURIES CAUSED BY INSECTS.

Root-crops are especially liable to injury from the depredations of insects. Thus the turnip may have its seed more or less destroyed by weevils. Immediately the seed appears above the ground, commences the attack by the turnip flea-beetles. The bulb is pierced by beetles, ending in those excrescences called “turnip-warbles;” and there is reason to think that even the root-fibrils are in some soils made the depositories of the eggs of insects, which give rise to extraordinary malformations.

Carrots and parsnips are liable to have the best-grown root made useless by its being pierced and eaten by the larvæ or grubs of a small fly, known as the Psila rosæ.

Even the mangel-wurzel, which has been so strenuously recommended as a substitute for the turnip on account of its freedom from insect attacks, and connected with which Curtis only describes a single insect, a leaf-miner, called Anthomyia Betæ, upon which he remarks that “these insects will seldom cause any loss to the mangel-wurzel crops should they ever abound to any extent.” In spite, however, of this, we find that the increased growth of this crop has caused a corresponding increase in the insect, to such an extent that, during the last two seasons, many crops have entirely failed from its depredations; as witness the following communication to the Agricultural Gazette for August 23rd, 1862:—

My mangel crop was drilled the 17th May, and came up most favourably. On Monday, the 2nd June, I asked my bailiff what was the matter with it; he said, “Oh, it was a sharp frost last night;” but on examination I found that instead of frost the leaves had within them a maggot, which had caused the plant to brown and die off. The late rains and growing weather have enabled the plant somewhat to revive, and also fresh plants to come up (for I had drilled 7 lb. per acre), but found to-day several leaves with maggots in them. My man told me “a quantity had eaten themselves out of the leaf and dropped;” and that he saw “a vast number of sparrows picking up those maggots.” I send you herewith some plants I brought up from the farm. My idea is that the seed was damp and bred the maggots, or that the leaves had been “struck with a fly,” and then the maggot followed. You will please let me have your ideas upon these points.—S. S.

The maggot, or larvæ, here described is that of a fly called the Anthomyia (Pegomyia) betæ, mangel-wurzel fly. An allied species will sometimes be found on the common dock-leaves, mining their galleries between the dermal cells of the leaves.

We have for some time observed the increase of this pest, and we are prepared to state that now we seldom see a crop that is not greatly injured by its attacks. Mr. Curtis thinks that the best method to destroy them is to employ boys to crush the leaves between the thumb and fingers at the part where the larvæ can be seen; and with this we fear we must for the present be content, unless we could devise some means to take the fly before its eggs are laid in the leaves.

We need not here dwell at length upon the natural history of those pests of the turnip—the Haltica nemorum (striped flea-beetle), and H. concinna (black flea-beetle), as the nature of their ravages are tolerably well known. Thus much, however, may be said; namely:—

a. These insects are called fleas because they have the power of hopping on being disturbed, much after the manner of a flea.
b. They have some five or six broods each year; the earlier ones probably being bred on charlocks and other weeds of the same natural order as the turnip; and hence, then, charlocks are pests, not only as being weeds, but as breeding-places for one of our most mischievous insects.
c. They migrate from their weed-haunts to the first crop of turnips, where much of their mischief may be prevented by simply dusting over the young plants with any fine powder, road-dirt answering the purpose as well as anything else.

Various devices have been employed for keeping away and killing these little creatures. We have used a contrivance for catching them, which may be described as follows:—

Some thin board (or boards), making a surface of about 4 feet long by 2 feet wide, is furnished at one end with a pair of light wheels of just sufficient diameter to lift the board about 2 or 3 inches above the plants. To the other end may be attached two crooked handles in such a manner that the machine can be wheeled flatly over the plants, or if four wheels be employed, one at each corner, a single handle can be used either to push or pull the implement. When used, it should have its underside painted over with tar or any handy viscid substance.

This should be used on bright days, the operator pushing it over the rows of turnips, so as, if possible, not to throw his shadow before. The middle of the day will be best, not only for this reason, but also because these creatures feed more actively at that time.

Now, our experience in the use of this simple contrivance on small experimental plots convinces us that a small boy could easily keep under the enemy in a good-sized field.

But now comes a very important question for consideration. Cannot we do more than kill a few of these creatures? cannot we adopt such plans as will render our crops tolerably safe from their depredations? We think so, and to this end advise the following method of proceeding:—

Let each turnip-grower prepare for the enemy by sowing from the eighth to a quarter of an acre of turnips in a sunny part of the farm as early as the first week in April. These patches would quickly attract all the turnip flea-beetles from the wild cruciferæ on which the first broods seem to depend, and in this small compass they can be killed in detail with the simple contrivance just described, so that when the real crop comes up there will be none, or at least only a few, beetles to emigrate to it; whereas, as we now manage, by the time the crop of turnips is sown, enough of the creatures are too often bred to render it necessary to sow two or three times before we can secure a crop.

Anbury is an affection to which only the different sorts of turnips are liable, in which case it differs from finger-and-toe, with which it has been very much confounded, as this latter occurs in all kinds of roots; namely, turnips, carrots, mangel-wurzel, &c., as well as both the common and Swedish turnips.

As a sample of an extreme case of finger-and-toe—digitate root,—we repeat the following [figure] of a Belgian carrot, in which it will be seen that the forks gradually taper to the extremities; in fact, the whole, instead of being a succulent fleshy tap or fusiform root, in which case it could readily be stored, is divided in fingers-and-toes, which are liable to break off, and this renders the product next to useless. Now, this affection may occur in any soil, as it is the result of a degeneracy in the stock of the plant; but in the affection now to be described the case is wholly different, as here the bulk of the swede ([fig. 12]) is affected with rough, cancerous knobs, whilst the rootlets support irregular knobs of a like kind, which have more the aspect of suspended rows of ginger than fingers-and-toes.

Fig. 11 (Fig. 8 repeated).
Finger-and-toe Carrot. Half natural size.

Roots so affected soon rot, and have a fœtid odour, so that they are not only useless themselves, but communicate canker and decay to the whole store. In the putrid mass will be found maggots and flies and beetles of different kinds; but as yet naturalists are not agreed as to whether the nodules of disease are caused by insects, or whether these creatures are merely attracted by the fœtid matter. We are, however, inclined to the belief that some insects are connected with the diseased appearance in the first place, whilst others afterwards step in to fatten upon the decaying matter, induced by the first lot; but still it must be confessed that the subject requires much more attention than it has yet received, in order to settle these important questions.

Still it may be observed that one point has been universally admitted; namely, that anbury only occurs to any extent in sandy soils, where there is an absence of lime, a good dressing of which mineral is the best safeguard against this affection. Still, in soils that are liable to anbury, we should not recommend the continuance of turnip-growing, or at least not so frequently in the rotation as has hitherto been the case, and more especially as the soils which produce anbury to the greatest extent are just those best adapted for parsnips and carrots, which, if not wholly, may occasionally be very profitably grown in the place of the turnip.

Fig. 12. Swede affected with Anbury. Nat. size.

Having given a few notes on the more prominent forms of insect attacks to which root crops are liable, we would now close this chapter, as details of all the insect pests would occupy more space than we can here allot to the subject; but to those who would inquire further upon this fertile theme, we would advise the perusal of “Farm Insects,” by J. Curtis, Esq., F.L.S., &c.

GENERAL CONCLUSIONS.

To render our subject as complete as possible, we direct attention to the following practical conclusions, to which our whole argument upon the science of root-growing points:—

First.—Cultivated roots are improved wild ones, only to be obtained by gardening on the small, or farming on the large scale; this gardening or farming being carried on by certain operations at certain seasons which we have comprehended under the term of cultivation processes.

Second.—The difference in sort of roots is caused either by cross-breeding as the result of accident or design, or of the education of some particular propensity which has been acted upon by the intelligent seed-grower.

Third.—The maintenance of sorts in purity depends upon careful selection of the right variety for the seeding examples.

Fourth.—The preservation of a good outline or shape of root can only be maintained by selecting those of good form to seed from; for, as running to seed, multiform top, forkiness, “finger-and-toe” in roots, is evidence of wild growth, so, then, cultivated plants assuming this form are considered as degenerate, and seed from such roots produces a malformed and poor crop.

Fifth.—The difficulties of getting good seed—whether of trueness to sort, from carefully selected bulbs, or free from adulteration either of old with new seed, or a mixture of charlock and others of the same family—are very great. Where, however, good seed can be depended upon, it is much cheaper, though at a considerable increase of first seeds cost, as not only quality but the quantity of live so considerably depends upon the truth and honesty of the seedsman.

Sixth.—Injuries from insect attacks, though serious as affecting the yield, are yet not due to the seed; and anbury, if it be due to insects, only occurs in the turnip-crops, and then in particular soils. The true insect attacks to be averted by simultaneous action.

In fine.—Good seed, of a true sort,—care in growth,—and a watchfulness of enemies, includes the Science and Practice of Root Cultivation.



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AND OTHER PLANTS RANKED UNDER THE ORDERS RANUNCULACEÆ,
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Vol. I. contains seven numbers at 5s. each,
OR COMPLETE, BOUND IN CLOTH, 38s.

“Mr. Syme’s English Botany will be the most complete Flora of Great Britain ever brought out. This great work will find a place wherever botanical science is cultivated and the study of our native plants with all their fascinating associations held dear.”—Athenæum.

LONDON: ROBERT HARDWICKE, 192, PICCADILLY.


Royal 8vo., price £1. 14s.

THE GRASSES OF GREAT BRITAIN (Completion of). Now ready, in 1 vol., containing life-size, full-coloured Drawings, with magnified Organs, of 144 British Grasses, and Observations on their Natural History and Uses. Described by C. JOHNSON. Illustrated by J. E. SOWERBY.

Complete, bound in cloth, price £1. 7s.

THE USEFUL PLANTS OF GREAT BRITAIN: a Treatise upon the principal Native Vegetables capable of Application as Food or Medicine, or in the Arts and Manufactures. By C. P. JOHNSON. Illustrated by J. E. SOWERBY. 300 Coloured Illustrations.

Fcap. 8vo., price 6s.

THE BRITISH FUNGI (a Plain and Easy Account of). With especial reference to the Esculent and other Economic Species. By M. C. COOKE. With Coloured Plates of 40 Species.

Also, by the same Author,

A MANUAL OF BOTANIC TERMS. Fcap. 8vo., upwards of 300 Illustrations, 2s. 6d.

MANUAL OF STRUCTURAL BOTANY, for the use of Students and Classes. 200 Illustrations, 1s.; bound in cloth, 1s. 6d.

Fully Illustrated, price 2s. 6d. plain, 4s. coloured.

THE BRITISH FERNS (a Plain and Easy Account of); together with their classification, arrangement of general structure, and functions, directions for in-door and out-door cultivation, and for drying. By Mrs. LANKESTER.

Small edition, 1134 in. by 812 in.; large edition, 1712 in. by 11 in.

THE FERN COLLECTOR’S ALBUM: a Descriptive Folio for the Reception of Natural Specimens; containing on the right-hand page a description of each fern, the opposite page being left blank for the collector to affix the dried specimen; forming, when filled, an elegant and complete collection of this interesting family of plants. Handsomely bound, price One Guinea.

A Large Edition, without descriptive letter-press, handsomely bound, One Guinea.

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WILD FLOWERS WORTH NOTICE: a Selection from the British Flora of such Plants as are most attractive from their Beauty, Uses, or Associations. By Mrs. LANKESTER, Author of “A Plain and Easy Account of British Ferns.”

Fcap. 8vo., 3s. 6d.

HORSE WARRANTY: a Plain and Comprehensive Guide to the various points noted, showing which are essential and which are unimportant.

LONDON: ROBERT HARDWICKE, 192, PICCADILLY.


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