ZOOLOGICAL PARKS AND AQUARIUMS 



939 



"Floors for Cages," George P. Vierheller. Parks and 

 Recreation, January-February, 1926, Vol. IX, No. 3, 

 pages 360361. 



"General Statistics of Cities: 1916." Bureau of the 

 Census, Department of Commerce, Washington, D. C., 

 page 34, material descriptive of Table 14, which appears 

 on pages 80, 81. Table presents a list of eighty-three 

 cities having zoological collections in 1916, giving date 

 of establishment, number of specimens, revenue re- 

 ceipts, governmental cost payments, and value of build- 

 ings and zoological collections. 



"Official Illustrations of the St. Louis Zoological 

 Park," issued under the auspices of the Zoological So- 

 ciety of St. Louis, 1926, 60 pages, illustrated, map. 



Parks and Recreation, the official organ of the Ameri- 

 can Institute of Park Executives, published bi-monthly 

 by the Institute at Rockford, 111. Among the several 

 departments of the magazine is a zoological depart- 

 ment. Since the beginning of the publication in 1917 

 to the present time the material which has appeared on 

 zoological subjects including zoological parks constitutes 

 a fairly comprehensive reference library. 



"Popular Official Guide to the New York Zoological 

 Park," Dr. William T. Hornaday. Published by the 



New York Zoological Society, March, 1925, 192 pages, 

 illustrated, maps, plans. 



"Protecting Zoo Animals from the Public." Parks 

 and Recreation, January-February, 1926, Vol. IX, No. 3, 

 pages 371-372- 



"Reports of the Superintendent of the National 

 Zoological Park." These appear in the annual reports 

 of the Smithsonian Institution but are also published 

 as separate pamphlets by the Government Printing 

 Office, Washington, D. C. 



"San Diego Zoo's New Research Hospital," Harry 

 M. Wegeforth, M.D. Parks and Recreation, May-June, 

 1926, Vol. IX, No. 5, pages 565-567, illustrated, plan. 



"Some Diseases Encountered in Captive Animals," 

 Dr. R. A. Kammerer. Parks and Recreation, January- 

 February, 1927, Vol. X, No. 3, pages 279-282. 



"Yearbooks of the Zoological Society of Philadel- 

 phia." For copies of the different years apply to C. 

 Emerson Brown, Director of the Philadelphia Zoological 

 Garden. 



"Zoological Gardens," E. H. Bean. Parks and Recrea- 

 tion, September-October, 1922, Vol. VI, No. i, pages 

 59-66. 



