326 



AMERICAN POULTRY ASSOCIATION 



Feather No. 4 shows an idealized flight feather from a male, 

 from which sex are taken all these flight feathers, which show 

 the improvement of a period of fifteen or twenty years, as at that 

 period feather No. 1 was a very good flight feather indeed. The 

 improvement during the period is shown by comparing feathers 

 No. 1 and No. 4. 



PLATE 112 



COLUMBIAN PLYMOUTH ROCKS, MALE, SMALLER 



SICKLES, DEFECTIVE AND CORRECT, FROM 



DIFFERENT INDIVIDUALS 



1. Glossy black, with white at root. 2. White breaking across the 

 center. 3. Idealized. 



