(44) 
development of other departments of the Garden. (2) For 
research work of members of the staff. (3) In connection 
with instruction and research privileges offered by the Gar- 
den, and by Columbia University. 
Visiting students and officers of other institutions have had 
access to the collections, while many qualified persons have 
been permitted to consult the specimens upon application to 
the Director-in-Chief. 
Assistance and Investigations 
The general care of the museums, the mounting of her- 
barium material and the printing of labels has been under the 
supervision of Dr. Shafer, Museum Custodian, who has de- 
voted considerable time to the collection of economic material 
with special reference to local medicinal plants and the arbo- 
reous flora, in connection with which he is making special in- 
vestigations. He has continued his studies of plants of west- 
ern Pennsylvania and of Cuba, and has completed some 
investigations on Cassia marylandica and a related species, 
the results of which have lately appeared in ‘* Torreya. 
The development and care of the fossil plant museum has 
been under the supervision of Dr. Hollick, Assistant Curator. 
He was granted leave of absence for the months of April, 
May and June, in order to prosecute work for the U.S. 
Geological Survey on the fossil flora of the Cretaceous for- 
mation in the vicinity. This involved both field work and the 
identification and drawing of specimens collected by others. 
Two weeks in July were devoted to field work for the Mary- 
land Geological Survey, on the fossil flora of the Pleistocene 
formation in that State. At various times, when circumstan- 
ces permitted, he prosecuted field work on Long Island and 
Staten Island, and a considerable number of fossil plants 
were collected. The results of the work on Long Island 
have been published in the BULLETIN of the Garden, Vol. 3, 
0. 11. Late in the autumn the Cretaceous clays at Krei- 
scherville, Staten Island, were examined by Dr. Hollick, and 
an interesting collection of fossil leaves and amber was ob- 
