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Garden conferences, and presented a paper on American 
filmy ferns at the Twentieth Anniversary of the Garden. 
Dr. H. H. Rusby, Honorary Curator of the Economic 
Collections, continued to develop the collections of the 
economic museum. For details, see his report 
Mrs. N. L. Britton, Honorary Curator of Mosses, con- 
tinued to care for and develop the collection of mosses, 
with the cooperation of Mr. R. illiams. Her report 
appears elsewhere in this publication: 
rthur Hollick, Honorary Curator of Fossil Plants, 
continued, with the cooperation of Mr. Edwin W. Hum- 
phreys, the work he initiated in former years. For par- 
ticulars, see his report. 
The writer, in addition to regular curatorial duties, con- 
tinued his studies on North American plants, particularly 
those of the southeastern United States. Especial atten- 
tion was given to the plants of southern Florida and two 
periods of field work and study were devoted to the little- 
known parts of tropical Florida, particularly on the Ever- 
glade Keys and on the Florida Keys. This exploration 
brought to light undescribed endemic plants, West Indian 
plants new to the flora of the United States, and naturalized 
exotic plants. Specimens of these have been incorporated 
in our permanent collections and the duplicates are being 
sent to other institutions as exchanges. 
Some monographic work on the family Polygalaceae for 
North American Flora was accomplished, both at the 
Garden and at Harvard University, and a paper on “‘ Recent 
Exploration in Southern Florida” was presented at the 
exercises of the Twentieth Anniversary of the Garden in 
September. 
Respectfully submitted, 
Joun K. Smatt, 
Head Curator of the Museums and Herbarium. 
