REPORT OF THE LIBRARIAN FOR a926 
Dr. C. Stuart GaAGER, DIRECTOR. 
Sir: I have the honor to submit herewith my report as librarian 
for the year ending December 31, 1926. 
The past year has shown definite progress. The total number 
of titles in the current serial and periodical file is now 847, an in- 
crease of 103 titles added during the year. 890 volumes and 
pamphlets have been added, making the total of volumes and 
pamphlets in the library 19,347. 
Accessions 
The 273 volumes received during the year through exchange, 
gift or purchase represent, in the main, individual titles rather 
than volumes belonging to sets of serials or periodicals. Among 
the more important book titles secured are, Buller’s Researches on 
Fungi; Correns’ Gesammelte Abhandlungen . . . 1899-1924; 
Crisp’s Mediaeval Gardens; Dallimore & Jackson’s Handbook of 
Coniferae; Johannsen’s Elemente der Exakten Erblichkeitslehre ; 
Kostytschew’s Lehrbuch der Pflanzenphysiologie; Morgan’s 
Genetics of Drosophila; several volumes of the new edition of the 
Nattrlichen Pflanzenfamilien; Pearson’s Life, Letters and La- 
bours of Francis Galton; the Catalogue of Printed Books on Agri- 
culture, 1471-1840, published by the Rothamsted Experimental 
Station; Shelford’s The Naturalist’s Guide to the Americas. 
Through the generosity of Miss Harriet H. White the library 
has received the two volumes that have been published of Mary 
Vaux Walcott’s American Wild Flowers and will receive, as pub- 
lished, later volumes. The library has also been presented, by the 
Hon. Richard Young, of Brooklyn, with the Park Commission- 
er’s report for 1902, which includes historical data relating to the 
Garden. 
The Pre-Linnean collection has been considerably augmented 
with titles from the 16th, 17th, and 18th century presses. These 
were purchased with the aid of the Gager Fund, specially set 
aside for the purchase of rare books. Among the titles thus 
acquired are, the Ortus Sanitatis, oder Gart der Gesuntheit . 
