THE LIFE OF A FOXHOUND. 197 



'* ' The quantity of oxygen inspired is also 

 affected by the temperature and density of 

 the atmosphere. 



" ' It is no difficult matter in warm 

 climates to study moderation in eating, and 

 men can bear hunger for a long time under the 

 Equator, but cold and hunger united very 

 soon exhaust the body.' 



" Liebig also states, * That the quantity of 

 food is regulated by the number of respira- 

 tions, by the temperature of the air, and by 

 the amount of heat given off to the surround- 

 ing medium.' 



** From the foregoing remarks, it will be 

 seen how great an influence food has upon 

 animals called upon to exert such violent 

 labour as foxhounds are. The comparisons 

 of the duration of life, when deprived of 

 food, between the bird and the serpent, I 

 apprehend, relates to birds whose nature it 

 is to feed upon grain only, because the 

 carnivorous birds live much longer without 

 food, their respiration being slower : and I 

 infer by this that the power of endurance in 

 hoimds, and their perfection of wind and 

 condition, are regulated by feeding them with 

 a due proportion of flesh, which, prepared by 



