The 
Journal of Heredity 
(Formerly the American Breeders’ Magazine) 
‘ 
Vol. XI, No. 1 January, 1920 
CONTENTS 
Hleritable Characters of Maize—Lineate Leaves, by G. N. Collins 
and J. H. Kempton... . FIONA : bray ceive 3 
Heredity and Economical Production of Food, by D. S. Burch. . 7 
Note on the Origin of Piebald Spotting in Dogs, by C. C. Little. . 12 
Teas’ Hybrid Catalpa, by D. F. Jones and W. O. Filley... . 16 
Some Promising New Pear Stocks, by Beverly T. Galloway........ in 2D 
The Decline of Autocracy and Its Relation to Warfare, by Frederick 
Adams Woods........ Shing tind ate ae é = 88) 
The Spread of Rosen Rye, by Frank A. Spragg. ... : 12 
Pioneer Growers of the Dasheen........ 16 
A New Dahlia of Interest to Plant Breeders... .. . 18 
The Journal of Heredity is published monthly by the American Genetic Associa- 
tion (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. Sub- 
scription price to non-members, $2.00 a year, foreign postage extra; price of single 
copies, 25 cents. 
Entered as second-ciass matter February 24, 1915, at the postoffice at Washing- 
ton, D. C., under the act of August 24, 1912. Contents copyrighted 1920 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 
(Organ of the American Genetic Association), Washington, D. C. 
Date of issue of this number, February 10, 1920. 
