The Journal of 



HEREDITY 



^ monthly puUicaiiori tkvokdtofhfd^reedim 

 ^nirml breeding ami Emmies 



TEOSINTE IN MEXICO 



THE CELL MECHANISM 



THREE NEW MUTATIONS 



SELECTING HOLSTEIN-FRIESIAN SIRES 



INHERITANCE OF PIT IN THE EAR 



KITH AND KIN 



PUBLISHED MONTHLY AT MENASHA, WISCONSIN 



BY THE 



AMERICAN GENETIC ASSOCIATION 



EDITORIAL AND GENERAL OFFICES 

 WASHINGTON, D. C. 



Volume XII, Number 8 October, 1921 



