128 ANIMAL ECOLOGY 



HUBER, J. 



1907. The Founding of Colonies by Atta Sexdens. Smith- 



sonian Report for 1906, pp. 355-372. 

 Ants and fungi. 



JUDD, S. D. 



1901. The Food of Nestling Birds. Yearbook U. S. Dept. 



Agr. for 1900, pp. 411-436. 



KEEBLE, F. 



1910. Plant Animals, A Study of Symbiosis, pp.163. Cam- 

 bridge, England. 



KIRBY, W., and SPENCE, W. 



1859. An Introduction to Entomology ; or, Elements of the 

 Natural History of Insects : Comprising an Account 

 of Noxious and Useful Insects, of their Metamor- 

 phoses, Food, Stratagems, Habitations, Societies, 

 Motions, Noises, Hybernation, Instinct, Etc., Etc. 

 pp. 607. Seventh edition, London. 



MARSHALL, G. A. K., and others. 



1902. Five Years' Observations and Experiments (1896- 



1901) on the Bionomics of South African Insects, 

 chiefly directed to the Investigation of Mimicry 

 and Warning Colours. Trans. Ent. Soc., London, 

 1902, pp. 287-584. 

 McAiEE, W. L. 



1908. Food Habits of the Grosbeaks. U. S. Dept. Agr., 



Bur. Biol. Surv., Bull. 32. pp. 92. 



1913. Index to Papers Relating to the Food of Birds by 

 Members of the Biological Survey in Publications 

 of the United States Department of Agriculture, 

 1885-1911. U. S. Dept. Agr., Biol. Surv., Bull. 

 No. 43. pp. 69. 



The Bureau of Biological Survey, and its predecessor, 

 the Division of Ornithology and Mammalogy, have 

 published in the Annual Reports and in numerous 

 bulletins elaborate studies of the foods and habits 

 of birds and mammals. 



