which, may possibly be of some value to 

 Natural History. I am specially indebted to 

 the facilities afforded me in the New York 

 Zoological Park by the courtesy of Mr. W. 

 T. Hornaday, the Director, who has given me 

 every opportunity to study the animals under 

 his care; to Dr. Ernst Pinkert, Director of 

 the Zoological Gardens, Leipzig, Germany ; B. 

 M. B. Villiers, Esq., Superintendent Zoologi- 

 cal Gardens, Clifton, Bristol, England; Dr. 

 F. A. Crandall, Superintendent of the Zoo, 

 Buffalo; Dr. Seitz, Director Zoological Gar- 

 dens, Frankfurt-on-Main, Germany; P. 

 Chalmers Mitchell, Esq., Secretary Royal 

 Zoological Gardens, London, England; Pro- 

 fessor Clemente Onelli, Director Zoological 

 Gardens, Buenos Ayres; R. F. Scharff, Esq., 

 Secretary Royal Zoological Gardens, Dublin, 

 Ireland; Edwin Cawston, Esq., President, and 

 M. S. Vallely, of the Pasadena Ostrich Farm, 

 California; Messrs. Lee & S. Shubert of the 

 New York Hippodrome; Mr. Frank C. 

 Bostock; the proprietors of the Barnum 

 and Bailey Circus; and to my many 

 friends, the trainers, performers, and keepers 

 who have done all in their power to 



