The Journal of 



HEREDITY 



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DWARF BARLEY 



INTELLIGENCE AND RACE 



JAPANESE CITRUS FRUITS 



WHICH BOSTON FERN IS BEST? 



A MUTATION IN THE DOWNING GOOSEBERRY 



HEMP FOR GENETIC INVESTIGATIONS 



ARE SPECIES UNIFORM? 



TALKING DOGS 



PUBLISHED MONTHLY AT MENASHA, WISCONSIN 



BY.THE 



AMERICAN GENETIC ASSOCIATION 



EDITORIAL AND GENERAL OFFICES 

 WASHINGTON, D. C. 



Volume XIII, Number 6 June, 1922 



Date of Issue— February 15, 1923 



