The 



Journal of Heredity 



(Formerly the American Breeders' Magazine) 



Vol. VI, No. 3 March, 1915 



CONTENTS 



A Dwarf Mutant in Maize (Frontispiece) 98 



On the Nature of Mutations, by R. Ruggles Gates 99 



Annual iVIeeting of the Association lOP- 



Conditions of Mendelian Inheritance by John Belling 108 



German Zootechny, Review of a Book by Georg Wilsdorf 109 



Date Palm Allies in America, by O. F. Cook 117 



Wheat Breeding, by A. E. V. Richardson 123 



Eugenic Legislation, \ Review 112 



Crosses with Zebu Cattle 141 



Pollination of Cherry Trees Ill 



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 3'ear, in addition to their regular membership dues of $2, because of additional 

 postage on the magazine; foreign miembers 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 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, February 25, 1915. 



