94 
to date and is reproduced herewith (fig. 7). Each line repre- 
sents a helping hand, an extension of the use of the library’s 
resources to some distant worker. During the period from 1910 
through 1937 loans totaling over 800 volumes have been extended 
to over 84 libraries including those of universities, colleges, 
horticultural societies, learned societies, research agencies, indus- 
trial firms, medical organizations, state and federal agencies, 
public libraries, museums, and others. 
That such help is of great value is shown by the letter of ap- 
preciation recently received from Dr. Philip R. White, of the 
Rockefeller Institute for Medical Research, Princeton, N. J. 
Lately Dr. White has been in the public eye as the winner of the 
thousand dollar prize of the American Association for the Ad- 
vancement of Science. His work on root pressure as a cause of 
the rise of sap in plants has received extensive newspaper pub- 
licity. In his letter he states: “In the past eight years that I have 
been working in and near New York, I have repeatedly had oc- 
casion to make use of these facilities. No other organization that 
I know of, within this area, which does permit its publications to 
go out on interlibrary loan has anywhere nearly as complete a 
collection of the literature of botany, particularly the older liter- 
ature. I think that any aid that can be given to further this 
undertaking would surely be well placed. You may quote me to 
that effect and I shall be very glad to write to anyone who is 
particularly interested.” 
During the year the library loaned 52 volumes for use in other 
institutions and borrowed 42 volumes for use by staff members of 
the Garden. 
Books were loaned to: Boyce Thompson Institute, Yonkers, 
. Y.; Carnegie Institution of Washington, Dept. of Genetics, 
Cold Spring Harbor, L. I.; Columbia University, New York; 
Haddon Craftsmen, Camden, N. ].; Johns Hopkins University, 
Baltimore, Md.; Long Island College of Medicine, Brooklyn; 
New York State College of Agriculture, Ithaca; New York State 
Library, Albany; New York University, Washington Square; New 
York University, College of Medicine; University of Rochester, 
Rush Rhees Library, Rochester, N. Y.; Rockefeller Institute for 
Medical Research, New York and Princeton, N. J.; Smith College 
