The Journal of 



HEREDITY 



^.mordhlij pmkaliorv tkwkd bfhnt$reedim 

 Animal £reedim (2nd Emenics 



Skunk Breeding . . . . . Detlefsen and Holbrook. 

 Rearing Wasps for Experimental Purposes P. W. Whiting 



Heredity in Wasps P. W. Whiting 



Heritable Characters of Maize '. . . R. A. Emerson 



Bud Variation in Sugar Cane . . . . . E. E. Barker 

 Hybrid Types of the Human Race . Herman Lundborg 



Nectar Feeding Birds of Hawaii J* F. Rock 



A Lizard WITH Serpentine Form . . . .R. W. Shufeldt 



PUBLISHED MONTHLY AT MENASHA, WISCONSIN 



BY THE 



AMERICAN GENETIC ASSOCIATION 



EDITORIAL AND GENERAL OFFICES 

 WASHINGTON, D. C. 



Volume XII, Number 6 June- July, 1921 



(Combined issues in this and following number only) 



