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herbarium material of the lobeliaceous genera Centropogon 
and Siphocampylus, and this work will be continued in 
1920 as time permits. 
In connection with the public lectures of the Garden, 
I have delivered three lectures in the lecture hall of the 
Museum Building and one in the Central Display House 
of Conservatory Range 2. 
Respectfully submitted, 
H. A. GLeason, 
First Assistant. 
REPORT OF THE HEAD CURATOR OF THE MUSEUMS 
D HERBARIUM 
Dr. N. L. Brirron, Director-1n-CHIEF. 
Sir: I submit herewith my report as Head Curator of 
the Museums and Herbarium for the year 1919. 
The collections, comprising the public exhibits and the 
research material, have been cared for and developed as 
in previous years. Specimens were received from various 
sources and were accessioned in detail, from month to 
month, in the Journal. The accessions for the year may 
be summarized as follows: 
By gift and purchase. ........ 0... ccc cece eee 2,399 
By exchanged «taster tsi seen ee ie gehts ber eae ses 3,133 
By exploration. 4 vcsy ateniiws bie staan Panacea 3,826 
Thus all together 9,358 specimens were brought together 
for the public exhibits and the research collections. The 
value of the specimens received as gifts is estimated at 
$346.70. About 5,050 duplicate herbarium specimens were 
sent to other institutions as exchanges. 
Museums 
The collections of the public museums were both en- 
larged and rearranged. No new equipment was added. 
Tue Economic Museum. Numerous specimens were 
added nearly throughout the public exhibits of this museum. 
The interpolation of specimens necessitated the rearrange- 
ment of the contents of nearly every exhibition case. For 
