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Journal of Heredity 
(Formerly the American Breeders’ Magazine) 
Vol. VII, No. 7 July, 1916 
CONTENTS 
Where Are the Best Papaws?...........5 600 ce eee eee ete een eres 291 
Eugenics for Arabic-Speaking Peoples (A review)............--+-++: 296 
Feeblemindedness and Charity..............0--6 reece e teeters 296 
Musical Ability, by Mrs. Evelyn Fletcher Copp.............---+++-- 297 
Official Register of Selected Plants in Hungary............-...----- 305 
Crossing Apricots and Peaches with Cherries..............+--.--++: 305 
A Botanical Paradox, by D. F. Higgins.............5-----+++5+s52 05: 306 
A Te UA ec Nee APT ELIG AG AGUA cee a See aleve One Seip osa enn ten err es 2 2) oneiiegedelety = 306 
Let’s Positivize Our Negative Eugenics, by A. E. Hamilton.......... 309 
Hybrid Trees, by W. H. Lamb (A TRAUALEL, AID Gn hao nM DEC OH om Aaa ate 311 
Wanted -vA\ Plant Breeden. oy ..c.is . midtsie ss ee le ee se sya ety oan 319 
Eugenics and Military Preparedness........-..-.--5 20-20 seseees 319 
Extra Fingers and Toes...........-0-20 0s esse cert teenies 320 
Origin of the White Blackberry........-.--- +++ 25-20-25 sesrteteees 324 
Change of Sex in Hemp, by Frederick JesPritchard a. 22.252 9 cep se Fen 325 
Concerning Prepotency, by The Editor.......-...-..----++---++++++ 330 
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 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 postoffice at Washing- 
ton, D. C., under the act of August 24, 1912. Contents copyrighted 1916 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, JUNE 26, 1916. 
