OIV |S.ON OF GENETICS , 

 



ADVANCE PRINT FROM THE PROCEEDINGS OF 



SThr Jpe&entft Cute rwittawU 



BOSTOX MEETING, AUGUST 19-24, 1907 



RESULTS OF CROSSING BURSA BURSA 

 PASTORIS AND BURSA HEEGERI 



GEORGE HARRISON SHULL 



CAMBRIDGE, MASSACHUSETTS 



1910 



