(2) 
Over 900 bound volumes were added to the library, this 
collection now aggregating 26,299 volumes. Additional 
cases are now much needed for the preservation and 
display of museum and herbarium specimens and for books, 
and it is hoped that these may be obtained during the 
coming year. Laboratory work with advanced students 
and investigators from other educational institutions has 
been continued over a wide range of subjects, including 
further development of work in plant genetics. A new 
departure in investigational work was made by cooperating 
with the agricultural department of Columbia University. 
Some investigational work was done in plant pathology, 
and it is desirable that this increasingly important topic 
should be further developed. commencement has been 
made along lines of experimental horticulture, looking 
forward to increased attention to this important subject. 
Direct public educational work has been continued, by 
33 public lectures delivered on Saturday afternoons from 
April 4 to November 14, by lectures and demonstrations 
to schools, and by the system of guidance of parties to 
various portions of the grounds, buildings, and collections; 
a great deal of information has been given out in this way. 
An increasing amount of information has been supplied by 
correspondence. 
Exploration work has been continued in regions botanic- 
ally little known and material additions to scientific 
knowledge have resulted. Exhibitions of plants and 
flowers, given in cooperation with the Horticultural 
Society of New York in May, June, and August, were 
highly successful. 
Publications of the year include Volume 15 of the Journal, 
Volume 6 of Mycologia, 3 parts of North American Flora, 
Bulletin No. 30, together with a portion of Bulletin No. 31, 
issued in advance, and 12 numbers of Contributions; 
Volume § of Memoirs, containing Mr. Norman Taylor’s 
work on the local flora of the vicinity of New York, has 
been completed for publication in January. 
