The Journal of 
HEREDIT 
A monthly publication devoted toPlantireeding 
Animal Breeding and Eugenics 
= : : 
: i \ Je 
79 
(38) 
JULY, 1916 
HYBRID TREES 
MUSICAL ABILITY 
A BOTANICAL PARADOX 
LET’S POSITIVIZE OUR NEGATIVE EUGENICS 
WHERE ARE THE BEST PAPAWS? 
EXTRA FINGERS AND TOES 
CHANGE OF SEX IN HEMP 
PREPOTENCY 
ORGAN OF THE 
AMERICAN GENETIC ‘ASSOCIATION 
WASHINGTON - D.C. 
Printed for Circulation among Members only 
