Th 



e 



Journal of Heredity 



(Formerly the American Breeders' Magazine) 



Vol. VI, No. 9 September, 1915 



CONTENTS 



Color ill Cocker Spaniels, by W. M. Barrows and J. Mel. Phillips. . . .387 

 New Publications: 



The Next Generation, by Frederick A. Rhodes 397 



The Mutation Factor in Evolution, by R. Ruggles Gates 432 



Societal Evolution, by Albert Galloway Keller 432 



Improving the Chile Pepper 397 



Studies in Correlation 397 



Plant Breeding in Canada, by W. T. Macoun 398 



Plant Breeding in Maryland 403 



Plant Breeding in Michigan 403 



War's Aftermath, by David Starr Jor Jan and Harvey Ernest Jordan 



(A Review) 404 



Photographs of Large Trees 407 



Experimental Breeding in Nebraska 423 



Value of the Contest, by W. H. Lamb 424 



Plant Breeding in South Carolina 428 



Rosa Hugonis, by David Fairchild 429 



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 

 postage on the magazine; foreign members pay 50 cents extra for the same 

 reason. Subscription price to non-members, $2.00 a year, foreign postage extra; 

 price of single copies, 25 cents. 



Entered as second-class matter February 24, 1915, at the postoffice at Washing- 

 ton, D. C, under the act of August 24, 1912. Contents copyrighted 1915 by the 

 American Genetic Association. Reproduction of articles or parts of articles 

 permitted provided proper credit is given to author and to the Journal of Heredity 

 (Organ of the American Genetic Association), Washington, D. C. 



Date of issue of this number, August 26, 1915. 



