Introductory References. 15 



Good Cows and their Training, in which the development 

 of large yielding capacity is explained. The consequence 

 of too much haste to grow rich, and of treating certain 

 cows as machines, are not forgotten ; it being also shown 

 that Abortion, of the recent variety, is ^i?/ epidemic, as the 

 malady is clearly traceable to the mechanical influence of 

 udder supply, artery engorgement, which itself is the result 

 of over-rapid increase of artery blood, from too large sup- 

 plies, or too rapid increase of feed. 



Dairymen or others, who may desire to make the breed- 

 ing of Milk cows a special pursuit, will find matter for 

 thought in chapter VIII., on Transmission by the cow, and 

 other suggestions with special reference to this subject, in 

 chapter XXIX., on Alternate milking and breeding, and 

 also in the several chapters of Book III. 



Hog breeders and feeders, and those who keep cows for 

 milk, in the vicinity of large cities, and elsewhere, may 

 ascertain, in chapter XVI., how the breeding grounds of 

 Bacteria are formed by preventing necessary exercise ; and 

 in chapter XVII. , how millions' worth of food value are an- 

 nually lost, in wasting the muscle-flesh and nutritive value 

 of vast numbers of hogs and fattening cattle ; also how to 

 prevent Lung plague, and the inroads of Bacteria termo, 

 souis, or other Scavenger organisms, or fungoid growths, 

 in the chapters specially treating on these subjects. Own- 

 ers of cows will find why many of the best milkers lose 

 their Breeding power, either temporarily or permanently, 

 by reading chapters XXVII. and XXVIII., and other parts 

 of Book III. , on farrow cows and deep milkers. 



The development of several leading characteristics in 

 well known Breeds of cattle is traced to its natural origin 

 in chapter. XIII. , on old Breeds of cattle, while changes in 

 the growth of Short-horn cattle, as observed in California, 

 are several times alluded to, to show the influence of new 

 external conditions, of soil, feed, and climate. 



