xxxiv The Mammals of Colorado 
about Animal Marriage. American Magazine, Nov., 1907. 
All the above articles by Seton contain accounts of the hab- 
its, history, and distribution of the species, and some have 
specific Colorado references. 
Stone, Witmer, and W. E. Cram. American Animals. A Popular 
Guide to the Mammals of North America North of Mexico, with 
Intimate Biographies of the More Familiar Species. 1902. 
Pictures of several Colorado species, habits, etc. 
Thomas, Oldfield. Article in Annals and Magazine of Natural 
History, 6th ser., xi., p. 406, 1893. Gives description oiPerog- 
nathus infraluteus from type taken at Loveland, Colo. 
True, Frederick W. Diagnoses of New North American Mam- 
mals. Proc. U. S. Nat. Mus., xvii., 1894. Describes at page 
24 1 Sciurus aberti concolor (now 5. a. ferreus) ; type from Love- 
land, Colo. 
Warren, Edward R. Some Interesting Beaver Dams in Colorado. 
Proc. Wash. Acad. Sci., vi., pp. 429-437, 1905. 
Warren, E. R. The Mammals of Colorado. Colorado College 
Publication, Gen. Ser. No. 19, Science Ser. No. 46, vol. xi., pp 
225-274. 1906. 
Warren, E. R. Further Notes on the Mammals of Colorado. 
Colorado College Publication, Gen. Ser. No. 33, Engineering 
Ser., vol. i.. No. 4, pp. 59-90. 1908. 
Whitney, J. Parker. Reminiscences of a Sportsman. 1906. 
Has some interesting references to the game in the early days 
of Colorado. 
Wright, William H. The Grizzly Bear. The Narrative of a 
Hunter-Naturalist. Historical, Scientific, and Adventurous. 
New York. 1909. An excellent account of the animal, and 
apparently adhering strictly to facts, without any fancies. 
Yarrow, H. C, and E. Coues. See Coues and Yarrow. 
Young, Robert. Notes on the Distribution of Colorado Mammals, 
with a Description of a New Species of Bat (Eptesicus pallidiis) 
from Boulder. Proc. Acad. Nat. Sci., Phila., July, 1908, pp. 
403-409. Notes on the distribution of various species with 
special reference to the life zones. 
