Th 



e 



Journal of Heredity 



(Formerly the American Breeders' Magazine) 



Vol. V, No. 1 



January, 1914 



CONTENTS 



IIow to Improve the Race, by Alexander Graham Bell 1 



The Chestnut Bark Disease, by Haven Metcalf 8 



Inheritance of Milk Yield 18 



Chestnut Brccdiufj; Experience, by W. Van Fleet 19 



The Origin of Species 25 



An Explanation of Graft-Hybrids 25 



Chestnut Blight Resistance, by Robert T. Morris 26 



Eugenics and Breeding, by O. F. Cook 30 



Meat Production in Swamps, by the Editor 34 



Prenatal Influences, by David Starr Jordan 38 



Variation in Tobacco, by H. K. Hayes 40 



The Journal of Heredity is published monthly by the American Breeders' Asso- 

 ciation (henceforth to be called the American Genetic 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 postoffice at Washington, 

 D. C, under the act of August 24, 1912. Contents copyrighted 1913 by the 

 American Genetic Association. Reproduction of articles or parts of articles 

 permitted provided proper credit is given to author and magazine. 



Date of issue of this num.ber, December 28, 1913. 



