( 234) 
given investigator. A second card index includes a careful 
inventory of all apparatus and reagents on hand, with the 
necessary data for reordering, and space for subsequent 
inventories of stock. 
The appropriation for the laboratories has been expended 
in the purchase of material and apparatus as the needs of in- 
vestigations in progress have made it necessary or desirable. 
Among the larger or more important pieces of apparatus pur- 
chased may be mentioned a hygrometer and a pair of bal- 
ances, both for the Tropical Laboratory of the Garden, at 
Cinchona, and a Gordon’s photomicrographic apparatus. 
In connection with the special meeting of the Torrey Club, 
held in honor of the tenth anniversary of the commencement 
of work in the development of the Garden, on the afternoon 
of May 23, the laboratories were open to the inspection of the 
members of the Club and other friends of the Garden. 
During the meeting of the American Association for the 
Advancement of Science and the Affiliated Societies, held in 
this city in Convocation week, a collation was served in the 
laboratories to members in attendance at the session of the 
Botanical Society of America, which was held at the Garden 
on December 29. 
In connection with the exhibition of the New York Academy 
of Sciences, held at the American Museum of Natural His- 
tory on December 28 and 29, to illustrate recent advancement 
in the different departments of science, I acted as vice-chair- 
man of the general committee in charge of the botanical exhibit. 
Material was assembled from thirty departments of botany 
and botanical workers in different parts of the country, and 
the laboratories contributed to the exhibit of the Garden. 
The work of the year has emphasized the need of more 
laboratory room, and especially of a suitable place within 
the museum building, for conducting experiments with living 
plants, now necessarily carried on at the propagating houses. 
During the summer, consonant with the original terms 
of my appointment, J was for six weeks in charge of the 
summer work in botany in the Summer School of New York 
