C9) 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 yeara 
ago, a number of persons in London were very seriously affected 
with vomiting and dysentery after partaking of sausages, the 
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?—Shortly after the commencement of 
our late national struggle, the author was consulted in reference 
to the most feasible plan of inaugurating Veterinary Science, se 
that it might be made available for the restoration of sick, lame, 
aud 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. 1 now propose to inform the reader how to 
render the knowledge we possess available. 
In the first place, I should follow the systems of instructions 
and the organizations of the veterinary schools of London, Ed- 
inburgh, Alfort, and Saumur, and prepare suitable text-books 
adapted to the wants of a nation of people who have never given 
the subject that attention which its importance demands, 
In the selectior. uf pupils, I favor the plan of General McClellan, 
which is as follows: “ The pupils for the veterinary school might 
