No. 555] 



CASTRATION IN BROWN LEGHORNS 



161 



TABLE 1= 



A Comparative Statement op the Chief Secondary Sexual Characters 

 op Domestic Chickens, Common to Nearlt All Varieties 



Body color! **** | 



varieties of domestic chickens, there is, with one excep- 

 tion, only one basic body pattern, that of the Jungle fowl. 

 (See table.) All other patterns, with the exception of the 

 white crest of certain Polish, must be considered as modi- 



2 These tables make no pretense of giving all the characters which differ 

 in the two sexes. I have also ignored minor details in some characterizations. 

 Uniform, except as the under color can be distinguished from the sur- 



