The 



Journal of Heredity 



(Formerly tke American Breeders* Magazine) 



Vol. X, No. 2 February, 1919 



CONTENTS 



The Synthetic Production of Wild Wheat Forms, by H. H. Love 



and W. T, Craig 51 



Present Condition and Opportunity of the American Genetic Asso- 

 ciation, by David Fairchild 65 



Some Present Aspects of Immigration 68 



The Breed in Poultry and Pure Breeding, by William A. Lippincott 71 



Butter Fat vs. Body Fat, by T. I. Mairs 79 



Better American Families — II, by Wilhelmine E. Key 80 



Good Qualities Are Correlated, by Frederick Adams Woods 84 



Restricted Entry of Plants to Protect American Crops 87 



Inbreeding Live Stock, by G. Pusch 88 



Race Mixture in Hawaii, by Vaughan MacCaughey 90 



NOTE 



Instead of raising the price of membership, and in order to meet the require- 

 ments of the War Industries Board, and also because of the drafting of the 

 whole Editorial Staff the July, August and September numbers have been 

 dropped out for 1918. Vol. IX contains only 8 instead of 12 numbers. 



The Journal of Heredity is published monthly with the exception of July, August 

 and September 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 postoflfice at Washing- 

 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 per- 

 mitted provided proper credit is given to author and to the Journal of Heredity (Or- 

 gan of the American Genetic Association), Washington, D. C. 



Date of issue of this number, April 5, 1919. 



