The 



Journal of Heredity 



(Formerly the American Breeders' Magazine) 

 Vol. XII, No. 1 January, 1921 



CONTENTS 



LAMONA— A NEW BREED OF POULTRY, by Harry M. Lamon 3 



BETTER AMERICAN FAMILIES, byWiLHELMiNEE. Key 30 



GENETICS OF HEREFORD CATTLE, by W. E. Castle and W. L. Wach- 



TER 37 



GROWING TOMATOES BY TIP-CUTTINGS, by George B. Durham 40 



ELEMENTARY BIOLOGY (A REVIEW) 41 



THE SOCIAL REACTIONS OF DEFECTIVES (A REVIEW) 41 



ORIGIN OF THE STRIPED OLEANDER, by A. D. Shamel 42 



PUREBRED SIRES LEAD RAPIDLY TO IMPROVEMENT IN FEMALE 



STOCK, by D. S. Burch '... 45 



Index for Volume XI {1920) ivith this issue 



The Journal OF Heredity is published monthly by the American Genetic Ass'n. 



Publication office, 450 Ahnaip Street, Menasha, Wis. 



Editorial and genera! offices, Washington, D. C. 



The Journal of Heredity is published by the American Genetic Associa- 

 tion 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 $3.00, 

 because of additional postage on the magazine: foreign members pay 50 cents extra 

 for the same reason. Subscription price to non-members, $3.00 a year, foreign post- 

 age extra: price of single copies, 35 cents. 



Entered as second-class matter May 13, 1921, at the postoffire at Menasha, 

 Wisconsin. Acceptance for mailing at the special rate of postage provided for in 

 Section 1103, Act of October 3, 1917, authorized Dec. 20, 1918. Contents copy- 

 righted 1921 by the American Genetic Association. Reproduction of articles or parts 

 of articles permitted only upon request for a proper purpose, and provided due credit 

 is given to author and to the Journal of Heredity (Organ of the American Genetic 

 Association, Washington, D. C), Menasha, Wisconsin. Address all communications 

 to the Association's office at Washington, D. C. 



Date of issue of this number, June 6, 1921. 



