(15) 
4. Herbarium 
The report of the Head Curator of the Museums and 
Herbarium gives details of work upon these immensely 
valuable collections, which have been largely increased 
and extensively rearranged and classified during the past 
year. Twelve new herbarium cases were obtained and 
put in position, and these have made it possible to incor- 
porate many thousand specimens which have been held 
in storage for several years, including about 4,800 brought 
from Colombia by Drs. Rusby and Pennell. Much ma- 
terial is still held in storage which should be brought into 
the collections in order to make it available for the use of 
students, and it is hoped that additional cases may be 
obtained. 
5. Lantern Slides, Photographic Negatives, and Prints 
Much progress has been made in the rearrangement and 
cataloguing of lantern slides and negatives since the ap- 
pointment in 1917 of Miss Elsie M. Kittredge as an Assis- 
tant Curator, referred to this duty, and some additions 
have been made to these collections, for which an additional 
case is now required. 
The large collection of prints and other illustrations of 
plants stored in cases in the library is being rearranged and 
made more satisfactory for consultation through the work 
of Mrs. Mortimer J. Fox, a member of the Garden, who 
kindly offered to serve as a voluntary assistant in the 
autumn and has since continued as such; her services are 
highly appreciated. 
Library 
During the year, considerable additional shelving space, 
long required for books, was attained by boxing a large 
part of the private library of Dr. John H. Barnhart, Bib- 
liographer, which has been deposited with the Garden for 
several years. The portions boxed were duplicates of 
volumes in the Garden’s library. Dr. Barnhart’s collec- 
tion contains a large number of desirable books which are 
