58 



Geological Sui-vey, through Mr. Bailey Willis, Geologist 

 and Assistant to the Director. 



1 6. Series of Books Showing Physiographic Progress 



During the Last Year. Loaned mostly by the 

 chairman of the committee. 



17. Map Showing Magnetic Declination in United States 



IN 1900, compiled by Henry Gannett and published in 

 the Seventeenth Annual Report of the Director of the 

 U. S. Geological Sui^vey. 



N 

 ZOOLOGY. 



In Charge of C. L. Bristol and Bashford Dean. 



1 . Plans and Models of the New York Zoological Park. 



a. A colored map of the Zoological Park, showing the 

 preliminary arrangement of the grounds and buildings. 

 Prepared by William T. Hornaday. 



b. A relief model of the Zoological Park, showing the 

 physical contours and distribution of the forest and water 

 areas. Prepared by William T. Hornaday. 



c. Photographs of the principal zoological parks of Europe, 

 many of them taken especially for the Society. 



d. Ground plans and preliminary sketches for the elevations 

 of the proposed lion house and the proposed monkey 

 house. After plans by C. Grant La Farge, architect. 



e. Annual report and other documents of the Society. 



Exhibited by the Zoological Society, through Henry 

 F. Osborn and William T. Hornaday. 



2. Cytology. Recent Cell Methods. 



a. Demonstration of mitotic figures and centrosome in the 

 eggs of Ascaris inegalocephala. Exhibited by E. B. 

 Wilson, Columbia University. 



