THE SELECTION OF ANIMALS 35 



a rising temperature, moistness in the muzzle, which is 

 always abundant in a healthy animal, grows less, the 

 immediate cause being inactivity of the excretory or- 

 gans. (3) A fairly active play of the ears. Such action 

 is the evidence of generated power seeking opportunity 

 to expend itself. (4) An abundant, smooth and glossy 

 coat. The same instances that produce elasticity in the 

 hide produce glossiness in the coat. But the degree of 

 such smoothness and glossiness is much influenced by 

 the weather. Subjected to exposure, the animal may 

 be in good health and yet have a much rougher coat than 

 o*?e not so exposed. (5) An active carriage. An active 

 carriage bears testimony to healthful action in all the 

 organs of the system, and especially to those concerned 

 in digestion. No sooner do these organs lose vigor than 

 there is a corresponding loss of freeness of movement and 

 activity in the carriage. These indications have been taken 

 substantially from the book. "Animal Breeding," by the au- 

 thor. Closely allied to them are the indications of con- 

 stitutional vigor discussed in the same work (p. 290). 



But the germs of some diseases may exist in animals 

 and no indications of the same be manifest to the eye. 

 Such are tuberculosis in cattle, tape and also stomach 

 worms in sheep. In the summer of 1905 the author 

 saw a herd of 32 head of Scotch Shorthorn cows at 

 Rockland, Out., Canada, every one of which had re- 

 sponded to the tuberculin test. They fed in a pasture 

 on the farm of Hon. W. C. Edwards who was experi- 

 menting in a large way as to the outcome of rearing 

 calves from tuberculous dams, but on milk obtained from 

 healthy animals. For some time previously Mr. Ed- 

 wards had been purchasing representatives of certain Scotch 

 families to be retained for future breeding. In every in- 

 stance, when brought to the farm they had been sub- 

 jected to the tuberculin test and those which responded 

 were given a place in the tuberculous herd. In the high 



