NORTH 
west EAST 
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° 
OFFICES [6 LABORATORIES ]7 O OFFICES & LAB 
< “ADMINISTRATIVE OF THE 
SCIENTIFIic DEPARTMENTS JaS SCIENTIFIC DEPA 
es 
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1. Elevators 
2. Office of the Director 
FIFTH FLOOR 
The fifth floor is given over to the administrative offices, the offices 
and laboratories of the scientific departments and the library which con- 
tains some 70,000 volumes on natural history, anthropology and travel. 
The library now contains over 15,000 volumes on zodlogy, com- 
prising many of the extremely rare and interesting monographs in 
ornithology; an excellent collection of 3,500 volumes in entomology, 
including many of the rare classics, and a 2,000 volume collection in 
conchology containing the standard works of Kuster, Reeve and Binney. 
There is also a well selected collection of 2,500 volumes in anthropology, 
including many of the older works relating to the North American 
Indian; an excellent collection of 3,500 volumes in geology enriched by 
the library of the late Professor Jules Marcou; a collection of 5,000 
volumes in paleontology, to a large extent composed of the Osborn 
Library of Vertebrate Paleontology; also an unusually complete collec- 
tion of more than 25,000 volumes of natural science periodicals. 
The reading room of the library is located in the west corridor and, 
with the exception of Sundays and holidays, is open free daily, from 9 
A. M. to 5 P. M., to all who may wish to consult the books. Besides the 
current issues of the more important periodicals, it contains the more 
general works of reference, while other volumes will, upon application 
to the librarian, be furnished to those who wish to consult them. 
On this floor, too, are the workrooms of the Department of Vertebrate 
Paleontology, where the skeletons of fossil animals are prepared and 
mounted, and the laboratory where are made the beautiful models of 
invertebrates. 
These, like the other laboratories, are of necessity not open to the 
public. 
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