Fig. 16. Bird 3, with only one-eighth 

 of the testicular volume remaining, shows 

 a further hypo development of the comb, 

 head, wattles, ear-lobes, and in it you can 

 see the excess development of the tail 

 which is characteristic of the castrated 

 chicken. 



Fig. 17. In 4, with only one-sixteenth 

 of the testicular volume present, one can 

 note a further hypo development of comb, 

 wattles, ear-lobe, and head, and a greater 

 development of tail; also increase in size 

 is beginning to show itself. 



Figs. 18-1!). In 5 and 6, where one thirty-second of the testicular volume was 

 lowed to remain, note the very small head, comb, wattles and ear-lobe, and also note 

 the development of the tail. 



Figs. 20-21. In 7, a very small amount of testicle was left, designated as "pinhead" 

 but at autopsy this small piece had sloughed, so this bird is completely castrated, as is 

 also bird 8. "Note the increase in size of Both as compared to bird 1, practically no 

 comb, small head, and largely developed tail. 



510 



