THE HEN THAT BECAME A ROOSTER 



Four vIl-ws of a hen that underwent complete sex-transformation, and one of her sons 

 (No. 5), hatched in March, 1920, when she was functioning as a female. The photo- 

 graphs were taken at intervals as the change in sex was taking place: 1. On March 17, 

 1921; 2. On May 20 of the same year; 3. and 4. On February 24, 1922. Then, on July 

 7, 1922. two chicks were hatched, of which this "hen" was the sire. (Frontispiece.) 

 [See Complete Sex-Transformation in the Domestic Fowl, by F. A. E. Crew. Page 361] 



