10 Prefatory Statement. 



published, we carefully read their report, thereby dis- 

 covering that the commission had entirely failed to rec- 

 ognize the material and very impoitant fact, that with any 

 considerable increase in a cow's milk yield, there must be 

 a corresponding enlargement of the Arteries that convey 

 blood to the milk glands. For over four years succeeding, 

 we devoted much time and study to the various phases of 

 the subject, the results being given in Book III. of this 

 work, which several able physicians assure us is irrefut- 

 able ; in which conclusion we cannot but concur. We 

 refer to the text for full explanation, with the remark that 

 the studies and labors which this subject required occupied 

 about four years of time, nearly all the matter having been 

 written over and condensed three times. 



From a long list, we have selected about twenty other 

 topics that seemed alike important and perplexing, giving 

 such special study to them severally as our limited facili- 

 ties permitted. Several of these problems have sufficient 

 interest and practical importance to require a treatise for 

 their full discussion and elucidation ; hence, we have 

 only been able to notice the more prominent bearings, 

 from our own point of view, of course, of topics that a 

 dozen short chapters are devoted to. 



In discussing numerous questions of wide scope and 

 bearing, views that conflict with current opinions and 

 practices are advanced ; for it is not to fall in with cur- 

 rent views that we write, but rather, it is our purpose to 

 state views and conclusions that seem to us more con- 

 sistent and correct. In fact, to do any good in correct- 

 ing anomalous practices, it is necessary to point out in- 

 consistencies and fallacies, to the end that investigation 

 and practical skill may devise methods of correcting 

 practices that are found to be wrong or inconsistent. 



This work, though in part fragmentary, is entirely orig- 

 inal, and though our facilities for reference and consulta- 



