The Journal of 



HEREDITY 



^ montnlu puolicatm devokdtofiid^reedm 

 Animal Jjreedim and Buaemcs 



DECEMBER, 1923 



THE DUCHESS CATTLE 



Sewall Wright 



CAUSES OF DEFECTIVE CHILDREN 



M. G. SCHLAPP 



ASIATIC BREEDS OF SHEEP 



C. C. Young 



A NEW METHOD OF GRAFTING 



T, Ralph Robinson 



PUBLISHED BY THE 



AMERICAN' GENETIC ASSOCIATION 

 BALTIMORE , MD. and WASHINGT0N,D.C 



Volume XIV Number 9 



