W The 



Journal of Heredity 



(Formerly the American Breeders' Magazine) 



Vol. IX, No. 5 May-June, 1918 



CONTENTS 



Breeding New Castor Beans, by Orland E. White 195 



Breeding Sows Before Litters are Weaned 200 



Girdling the Corinth Grape to Make it Bear, by Geo. C. Husmann. 201 

 Laboratory Methods Needed in Handling Defectives 210 



Effect of War on School Enrollment 210 



Producing Bread Making Wheats for Warm Climates, by George F. 



Freeman 



Selection of Laying Hens 



Color Inheritance in Mammals; XI, Man, by Sewall Wright 227 



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 postoflSce at Washmg- 

 ton D. C, under the act of August 24, 1912. Contents copyrighted 1918 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, May 25, 1918. 



