( 236) 
West Indies, and northern South America. About 10,600 
herbarium sheets, containing fully 24,000 specimens were 
incorporated with the permanent collections. Consider- 
able readjustment of the specimens in the cases was 
necessary because of the unequal accumulation of speci- 
mens. Algae from continental and insular North America 
and from the Antarctic regions were incorporated. Hun- 
dreds of microscope slides, particularly of the Bahama 
algae were prepared and placed with the specimens. Fungi 
from North America, the West Indies and from Africa 
were added to permanent collections. The more im- 
portant species were those from North America and South 
America. Lichens came almost wholly from southern 
Florida and the Bahamas. Hepatics added were mainly 
from eastern North America. Bryophytes representing a 
wide geographic range were added. The additions to the 
fern herbarium, like that of the flowering plants, were 
mainly from America. The most important were derived 
from Canada, the United States, Mexico, the West Indies, 
and northern South America. A few specimens were 
received for the Columbia University Herbarium. They 
were mounted and added to that collection. 
The local herbarium was increased by special and 
selected specimens collected mostly by members of the 
Garden staff while on field excursions of the Torrey Botani- 
cal Club and on vacations. Some specimens were also 
secured through exchanges. 
Investigations and Assistance 
Dr. P. A. Rydberg, Curator, had charge of the herbarium 
of flowering plants. In addition to the usual curatorial 
work connected with the collections of mounted specimens, 
he sorted all the unmounted herbarium specimens of 
North America into systematic order, so as to make the 
specimens of any group easily available for study. He also 
continued taxonomic work on the families Fabaceae, 
Ambrosiaceae, and Carduaceae for North American Flora. 
