The American Naturalist 



A Monthly Journal, established in 1867, Devoted to the Advancement of the Biological Sciences 

 with Special Reference to the Factor* of Organic Evolution and Heredity 



L Heredity of Tricolor in Guinea-pigs. Dr. H. D. 





n. Causes and Determiners in Radically Exneri- 





V. Note* and Literature : Valuation of the Bea. 





CONTENT8 OF THE AUQU8T NUMBER 







M. Davis. 

















™323SS 



THE SCIENCE PRESS 



Garrison, N. Y. Substation 84 : NEW YORK Lancaster. Pa. 



