The Journal of 



HEREDITY 



^ montklij puUicdioyi dzvokdhfLdjoreediw 

 Animal 3reedim and Euopnics 



OCTOBER 1918 

 Vol. IX, No. 6 



ABSENCE OF XENIA IN OSTRICH EGGS 



WHY NAVEL ORANGES ARE SEEDLESS 



WANTED! PHOTOGRAPHS OF TWINS 



WILL MORALITY DISAPPEAR? 



BEE KEEPING MAY INCREASE THE COTTON CROP 



ORGAN OF THE 



AMERICAN' GENETIC ASSOCIATION 



AATASHINGTOK ' D.C. 



Jrinkdifor QirculalioH. amon^'JKembers only 



