42 Cat'.le Probhms. 



The fact of protcid substances being transformed into 

 muscle when that is required, or into fat when not re- 

 quired to form muscle, shows why they are proteids, 

 namely, to be available for different purposes. And it is 

 certain that fats are necessary in milk to supply a source 

 of necessary heat in the system of the calf, and in aiding 

 to maintain the liquid state of its circulation, by maintain- 

 ing the natural temperature of the blood, and so prevent- 

 ing its thickening and coagulation, which indicates the 

 natural purpose of fats being formed in the udder to min- 

 gle with the milk. And the formation of fat in milk for 

 such necessary uses is another proof of the wise and won- 

 derful provisions of nature. 



Milk partakes of the worst as well as the best qualities 

 of the blood, and of the food, pure or impure, from which 

 blood is formed ; which is shown by fatal fevers having 

 been traced to the use of milk of noxious quality ; the 

 dangerous quality, of course, being derived from the food 

 or drink of the cows, accidentally obtained. Hence, pure 

 blood is necessary to form wholesome milk ; and the best 

 quality of blood and milk can only be obtained from the 

 best quality of food ; the milk quality varying from good 

 to bad, or worse than bad, as the quality of the feed varies 

 from good to bad, even to dangerously bad; which strongly 

 indicates that sound, wholesome milk can be formed only 

 from sound and wholesome feed and water. Like cause, 

 like consequence ; impure quality in the food causes im- 

 pure quality in the milk. Good, sweet grass — the qualities 

 of rank manure sometimes are found in the grass it pro- 

 duces — either green or dried, is the standard milk-forming 

 food ; and its qualities should be borne in mind in provid- 

 ing substitutes, or other food, for cows. Milk, itself, after 

 it is obtained, is a great absorber of taints, odors, and poi- 

 sonous gases, wherever they come in contact with it; 

 hence, for whatever purpose, it is safest to use milk when 



