(150 ) 
34,000 were selected, mounted and distributed in the perma- 
nent collection. These were mounted on 25,524 sheets of 
herbarium paper, and include several hundred specimens 
presented to the Columbia University herbarium. In addi- 
tion to the above about 600 bulky specimens were placed in 
the several sizes of multiple paper boxes. 
The cases containing the specimens of algae were moved 
from the room adjoining the library on the west, to the ad- 
jacent room, in order to allow for the growth of the library. 
The exotic specimens of angiosperms, including all from 
without the area included in ‘* North American Flora” were 
arranged alphabetically and separated geographically in 
covers as follows: South America, Europe, Asia, Africa, 
Australia and Oceanica; by this arrangement the specimens 
are readily found for reference. 
Considerable time was devoted during the latter part of the 
year to ascertaining the condition of preservation of all her- 
barium specimens of ferns and flowering plants; every bundle 
of specimens was looked over and a few instances of insect 
depredation were found, but no material damage had been 
done. 
From time to time specimens were selected from our accu- 
mulation of duplicates and sent as exchanges to other institu- 
tions. The total number of specimens sent in exchange was 
45793- 
Assistance and Investigations 
Dr. William A. Murrill, Assistant Director, looked after 
the conservation and development of the fungal collections. 
(For further details see report of the Assistant Director.) 
Mr. Fred. J. Seaver, Director of the Laboratories, has also 
done much work on these collections during the latter part of 
the year. 
Dr. Marshall A. Howe, Curator, has chiefly conserved the 
collections of algae and hepatics. He has continued his 
studies of the marine algae, particularly of the West Indian 
region, and has prepared a monographic account of the 
species of .Veomer’s of the world. Dr. Howe served during 
