30 DADD'S VETERINARY MEDICINE AND SURGERY. 



relate, the "Trichina" is said to have come from the "field* 

 mouse," which the hog, by eating, introduces into his system, from 

 whence it is introduced into the system of man. A few years 

 ago, a number of persons in London were very seriously affected 

 with vomiting and dysentery after partaking of sausages, tlu 

 meat of which was found to be in a putrid state. Liebig, the 

 great chemist, informs us that " several hundred cases are known 

 in which death has occurred from the use of bad sausages in a 

 state of putrefaction." This kind of testimony might be multi- 

 plied to an indefinite length, but what has been written must 

 suffice. The reader can not fail to perceive that, in the study of 

 comparative anatomy and physiology, a wide field for investiga- 

 tion and research is before us, which will amply repay the devoted 

 student, and be the means of accomplishing much good. 



Veterinary Science — How to Inaugurate it — What Benefits have 

 we derived from its Study f — Shortly after the commencement cf 

 our late national struggle, the author was consulted in reference 

 to the most feasible plan of inaugurating Veterinary Science, so 

 that it might be made available for the restoration of sick, lame, 

 and otherwise disabled horses in the Government service, which 

 drew forth the following reply : Up to the present period there 

 exists no law authorizing the employment of regularly-educated 

 veterinary surgeons; therefore any rational plan calculated to 

 ameliorate the condition of army horses, or to prevent the many 

 unnecessary cases of disease and premature deaths which are now 

 constantly occurring, or to guard against the great pecuniary 

 losses which the Government and people of this country have 

 been compelled to submit to in the condemnation and forced sales 

 of deteriorated horses, can not, as I understand the matter, be 

 considered by the powers that be until Congress shall legislate 

 upon the subject. I now propose to inform the reader how to 

 render the knowledge we possess available. 



In the first place, I should follow the systems of instruction 

 and the organizations of the veterinary schools of London, Ed- 

 inburgh, Alfort, and Saumur, and prepare suitable text-book* 

 adapted to the wants of a nation of people who have never given 

 the subject that attention which its importance demands. 



In the selectior. of pupils, I favor the plan of General McClellan, 

 which is as follows : " The pupils for the veterinary school might 



