MOUNTAIN ANTS OF NORTH AMERICA. 567 



Merriam, G. H. 



1892. The Geological Distribution of Life in North America. 

 Proc. Biol. Soc. Wash. 7, 1892, pp. 1-64. 



1898. Life Zones and Crop Zones of the United States. Bull. 

 No. 10, U. S. Dept. Agric, Div. Biol. Survey, 1898, 

 73 pp., 1 pi. 



1899. Results of a Biological Survey of Mt. Shasta, California. 

 North Amer. Fauna No. 16. U. S. Dept. Agric, Div. 

 Biol. Survey, 1899, 179 pp., 46 figs. 

 Moschler, H. B. 



1884. Die Nordamerika und Europa gemeinsam angehorigen 

 Lepidopteren. Verh. K. K. zool. hot. Ges. Wien. 1884, 

 pp. 273-320. 

 Osborn, H. F. 



1910. The Age of jMammals in Europe, Asia and North America. 

 New York, The Macmillan Company, 1910. 

 Osten-Sacken, C. R. 



1877. Western Diptera: Descriptions of Genera and Species of 

 Diptera from the Region West of the Mississippi and 

 Especially from California. Bull. U. S. Geol. and 

 Geogr. Surv. 3, 1877, pp. 189-354. 

 PfefEer, G. 



1891. Versuch uber die erdgeschichtliche Entwickelung der 

 jetzigen Verbreitungsverhaltnisse unserer Tierwelt. 

 Hamburg, L. Friederichsen & Co., 1891, 62 pp. 

 Sanderson, E. D. 



1908. The Influence of Minimum Temperatures in Limiting the 

 Northern Distribution of Insects. Journ. Econ. Ent. 

 1, 1908, pp. 245-262, 7 maps. 

 Scharff, R. F. 



1907. European Animals: Their Geological History and Geo- 

 graphical Distribution. New York, E. P. Dutton & 

 Co., 1907. 

 1912. Distribution, and Origin of Life in America. New York, 

 The Macmillan Company, 1912. 

 Schwarz, E. A. 



1890. On the Coleoptera Common to North America and Other 

 Countries. Proc. Ent. Soc. Wash. 1, 1890, pp. 182- 

 195. 



