Th 



Journal of Heredity 



(Formerly the American Breeders' Magazine) 



Vol. V, No. 4 



April, 1914 



CONTENTS 



Differential Fecundity, by Walter F. Willcox 141 



The Need of Accuracy, by David Heron 148 



Eugenic Civilization, by Francis Galton 118 



Alaska's Reindeer Industry, by Levi Chubbuck 149 



New Publications 154 



The Existence of Species, by O. F. Cook 155 



Collecting in Turkestan, by Frank N. Meyer 159 



New Publications 169 



The Immigration Problem, by Robert De C. Ward 169 



Breeding Karakul Sheep, by Dr. C. C. Young 170 



Quail Breeding (from "Forest and Stream") 178 



Three New Nuts, by The Editor 179 



Increasing the Richness of Milk, by Nils Hansson 183 



Influence of Source of Seed, by Arnold Engler 185 



Eugenics in the Colleges 186 



The Journal of Heredity is published monthly by the American Genetic 

 Association (formerly called the American Breeders' Association) for the benefit 

 of its members. Canadian members who desire to receive it should send 25 cents a 

 year, in addition to their regular membership dues of $2, because of additional post- 

 age on the magazine; foreign members pay 50 cents extra for the same reason. 

 Price of single copies, 25 cents. 



Entered as second-class matter August 27, 1912, at the postofihce at Washington, 

 D. C, under the act of August 24, 1912. Contents copyrighted 1914 by the 

 American Genetic Association. Reproduction of articles or parts of articles 

 permitted provided proper credit is given to author and Journal. 



Date of issue of this number, March 26, 1914. 



