The 
Journal of Heredity 
(Formerly the American Breeders’ Magazine) 
Vel) XT, No. 2 February, 1920 
CONTENTS 
The Water Buffalo—A Tropical Source of Butter Fat, by C. O. Levine 51 
Heritable Characters of Maize—Il. Pistillate Flowered Maize 
Plants, by R. A. Emerson. ..............0.00 0200s eeeeues tos 
Eugenics and Other Sciences, by Frederick Adams Woods.. . SAK 
The Death of Richard Semon................ op Ae ote o hoe 78 
A Discussion of Popenoe and Johnson’s ‘“‘Applied Eugenics,”? and 
the Question of Heredity vs. Environment.................... 80 
Variation of the Palm Weevil, and The Meaning of Continuous Vari- 
SUT TOYAGNEUCGOLOL = ctyts x rea slcteyt oe) oes ciel er dae wes hers abages ea: eeiohe tee es8e 
Meas) Inteluirence rs. 66 cis dhe een isc ne es diewiers ewes 5 = .. 86 
The Development of Useful Citizenship, by Hilda H. Noyes.......... 88 
A Mutating Blackberry-Dewberry Hybrid, by L. R. Detjen.......... 92 
An Award of Honor to Walter Van Fleet..................... face oe 
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 $2.00, 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-class 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, upon request, for a proper purpose, and provided due credit is given to 
author and to the JouRNAL oF HErepity (Organ of the American Genetic Associa- 
tion), Washington, D. C. 
Date of issue of this number, March 26, 1920. 
