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REPORT OF THE HEAD CURATOR OF THE 
MUSEUMS AND HERBARIUM 
Dr. N. L. Brirron, Director-1n-CuHier. 
Sir: I have the honor to submit herewith my report as 
Head Curator of the Museums and Herbarium for the 
year 1920. 
The several collections, both the public exhibits and the 
research material, were cared for and developed as in 
preceding years 
e materials acquired during the year represent a 
wide geographic range, but the more important additions 
came from continental and insular America. The speci- 
mens received during the year were accessioned in detail 
from month to month in the Journal. The accession lists 
there recorded may be summarized as follows: 
ppecmen feccived through sae and purchases.......... 4,972 
ANSES is chaeitrate temic aa 2,489 
a “ ie Biba on Rea er ee rare 9,108 
Thus a total of 16,569 specimens was added to the re- 
sources of our permanent and duplicate collections. The 
value of the specimens received as gifts is estimated at 
269. About 3,790 duplicate specimens were sent to 
other institutions as exchanges. In return we have re- 
ceived specimens or credit. 
Museums 
The public exhibits were maintained as in the previous 
year. No new equipment was added, but miscellaneous 
specimens were interpolated and extensive rearrangements 
of specimens were effected in the economic museum. 
Economic Museum 
Numerous specimens were added to this exhibit chiefly 
through the personal activity and efforts of Dr. Rusby, 
Honorary Curator of the Economic Collections. These 
additions were made throughout the various divisions and 
