COLUMBIA UNIVERSITY LIBRARIES

This ЫК is due оп the date indicatM below, or Bt

expiration of а defnite period after Eie date of borrowinz,

ад provided by the rula of the Library or by spcial ar-

mngement with the Librarian in charge.

ПТЕ BonnowED

DATE DUE

DATE BORROWED

ПТЕ DUE