HEREDITY OP BODY COLOR IN DROSOPHILA 



T. H. MORGAN 



PLATE 1 



# 





^^ 



'•% 



(fm 



PhOTO-CHROMOTyPE. PHHAlPA 



4 



THE JOURNAL OF EXPERIMENTAL ZOOLOGY, VOL. 13, NO. 1 



45 



E. M. WALLACE, DEL. 



