BIBLIOGKAPHY. 



1. GENERAL WORKS ON BIOLOGY. 



Jevons — The Principles of Science. Vols. 

 I. and II. London: Maemillan & Co., 

 1874. 



Spencer — The Principles of Biology. Vols. 

 I. and 11. American .edition. New- 

 York : D. Appieton & Co., 1S81. 



Darwin" — On the Origin of Species. Ameri- 

 can edition. New York : D. Appieton 

 ct Co., 1880. 



2. GENERAL WORKS ON ZOOLOGY: 



Semper — Animal Life. New York: D. Ap- 

 pieton & Co., 1881. 



Gegendbaur — Elements of Comparative 

 Anatomy. English Translation. Lon- 

 don : Maemillan & Co., 1878. 



Balfour— A Treatise on Comparative Em- 

 bryology. Vols. I. and II. London : 

 Maemillan & Co., 1880. 



Huxley — An Introduction to the Classifi- 

 cation of Animals. New edition. Lon- 

 don, 1882. 



3. WORKS RELATING TO NORTH 



AMERICAN MAMMALS. 



Baird— Mammals of North America. Phila- 

 delphia: J. B. Lippincott & Co., 1859. 



Gill — Arrangement of the Eamilies of 

 Mammals. Smithsonian Institution, 

 Washington. 



Coues — Mustelidaj, or Fur-Bearing Ani- 

 mals. L'nited States Geological Sur- 

 vev. Washington, 1877. 



Allen — History of North American Pin- 

 ne|)eds. United States Geological Sur- 

 vey. AVashington, 1880. 



Coues and Allen— Monographs of North 

 American Rodentia. United States 

 Geological Survey. Washington, 1S77. 



Allen, H. — :\Ionograph of the Bats of 

 North America. Smithsonian Insti- 

 tute, Washington, 1864. 



Jordan— Manual of the Vertebrates of the 

 Northern Ignited States. Second edi- 

 tion. Chicago : Jansen, McClurg & 

 Co., 1878. 



4. WORKS RELATING TO NORTH 



AMERICAN BIRDS 

 RiDGWAY — Nomenclature of North Ameri- 

 can Birds. United States National 

 Museum, Washington, 1881. 



Baird — Review of American Birds. Smith- 

 sonian Institution. Washington, 1864. 



Baird, Brewer and Ridgway — A History 

 of North American Birds. Land Birds. 

 Boston: Little, Brown & Co., 1874. 



Coues — Birds of the Nortliwest. United 

 States Geological Survey. Washington, 

 1874. 



Cooper— Ornithology of California, Vol. I, 

 Land Birds. Baird, Editor. Cambridge: 

 1870. 



5. WORKS RELATING TO NORTH 

 AMERICAN REPTILES AND BA- 

 TRACHIANS. 



Cope — Check-List of North American Rep- 

 tilia and Batrachia. Smithsonian In- 

 stitution, Washington, 1875. 



Agassiz— Contributions to the Natural His- 

 tory of the United States, A'ois. I. and 

 II. Boston: Little, Brown & Co., 1857. 



Holbrook— North American Herpetology, 

 Vols. I.-V. Philadelphia. 1842. 



