John Hammond 



417 



alimentary canal. It is difficult to give an explanation of this fact unless 

 it be due to changes in the systems of management and amount of 

 exercise given. The same thing has occurred in sheep (66). 



200 



240 



280 



320 360 400 



Weight in Ihs 



440 



480 



520 



11 months old 



290 



330 



370 



410 



450 



Weight in Ibt 



490 



530 



570 



J^ 



610 



Fig. 5. Distribution curves of live weight in Large Black pigs. 

 Light curve— 1901-6. Shaded curve— 1907-13. 



Table XVII. Changes in live weights of pigs from Period I (1901-6) 

 to Period II (1907-13). 



Numbers of pigs from which results calculated. 



