T01. XLIX, HO. 688 " 



DECEMBEB, 1914 



THE 



AMERICAN 

 NATURALIST 



A MONTHLY JOTJENAL 

 Devoted to the Advancement of the Biological Sciences i 

 Special Eeference to the Factors of Evolution 



H. The Inheritance of Black-eyed White Spotting in Mice. Dr. C. C. Little - 7 

 m. The Fi Blend accompanied by Oenic Pnrity. Dr. H. H. Laughlih - - 7 

 IV. The Population of the "Blanket Algae" of Freshwater Pools. Emilie Louise 



THE SCIENCE PRESS 

 LANCASTER. PA. GABBISON, N. T. 



NEW YORK : SUB-STATION 84 



