(281 ) 
1,632 specimens, of which a large number were Philippine 
Island specimens; all these have been incorporated with the 
permanent collection by Mr. R. S. Williams, Administrative 
Assistant. Mr. Williams devoted considerable time to the 
study of his own collections of Philippine mosses made in 
1903-1905, and assisted Mrs. Britton in the determination 
of specimens of genera of which he has made a special study, 
particularly in the Dicranaceae. 
Dr. H. H. Rusby, Honorary Curator of the Economic 
Collections, ve devoted his time to securing specimens and 
preparing copy for labels. For further details, see report 
of the Honorary Curator of the Economic Collections. 
Dr. Arthur Hollick, Curator, had charge of the collections 
of fossil plants. In addition to curatorial work in connection 
with the public exhibits, Dr. Hollick gave instruction to 
registered students in paleobotany, edited the BuLieTin of 
the Garden, delivered a lecture on ‘‘Swamps, Ancient and 
Modern,” and prepared and published an article with 
illustrations, entitled ‘‘ Pot-holes in the New York Botanical 
Garden.” He pursued investigations on the fossil flora of 
Alaska and the Pleistocene flora of Canada. Leave of 
absence from the Garden was granted to Dr. Hollick during 
March, April, May, and June, in order to allow him to 
prosecute studies for the United States Geological Survey 
on the fossil flora of Alaska. In the work of labeling, 
installing and rearranging specimens, Mr. Edwin W. 
Humphreys rendered valuable voluntary assistance. 
Dr. Fred J. Seaver, Curator, continued the work of nam- 
ing, assorting, and mounting the fungi. Field work and 
collecting during the year was confined to local areas within 
easy reach of the Garden. ‘This resulted in the finding of 
several species new to science and a material strengthening 
of our collections, especially those of fleshy discomycetes. 
Critical work on several groups of fungi has been continued, 
and several preliminary papers published. Work on local 
destructive insect pests has been continued and one paper 
published in the Journat. Dr. Seaver continued to act 
as associate editor of Mycozocia. Two lectures were de- 
