(41) 
ance of students under the guidance of instructors from New 
York City and from neighboring states has markedly in- 
creased, and a greater interest has naturally been taken in 
the public museums as the collections have been made more 
complete. The microscope exhibit continued to be especially 
attractive to the general visitors, while the local flora exhibit 
has proved especially helpful to teachers and investigators. 
Students and investigators have used the collections in con- 
nection with instruction and research, while importers and 
manufacturers have had access to the exhibits of the economic 
museum, in consultation with the members of the Garden 
staff 
Herbarium 
1. Accessions. The herbaria have been increased by 
59,349 specimens from all parts of the world. The explora- 
tions carried on by the Garden, in America and in the Phil- 
ippine Islands, have notably enriched these collections. 
Considerable exchanging of duplicate material with other 
institutions has also added many desirable specimens. Most 
of the current distributions of plants by private collectors 
have been secured. The algal collections have been en- 
riched by much material secured by Dr. Howe in subtropi- 
cal waters, and by miscellaneous specimens, many of them 
cotypes, secured at various institutions during his recent trip 
to Europe. The fungal collections have grown in impor- 
tance through the efforts of Mr. Earle and Dr. Murrill. 
Their personal collections in eastern North America have 
alone added much of value to the knowledge of this imper- 
fectly known group of plants. The bryophytic collections 
have been augmented by the collections of Mrs. Britton on 
the North American mainland and in the Bahamas, and by 
other specimens secured by members of the staff. The more 
valuable additions of flowering plants are from America, 
Europe and southeastern Asia. 
2. MounTING AND CONSERVING OF HERBARIUM Ma- 
TERIAL. During 1903, especial effort was made to bring 
together all the accumulated cryptogamic material not incor- 
