492 
W. L. WILLIAMS. 
the general condition of the body of the host, and can only 
injuriously affect the consumer by the ingestion of the living 
parasite. In such cases, thorough cooking of the meat under 
official control renders it safe, and only objectionable from a 
sentimental standpoint. 
More rarely it happens that some of these parasites, by in¬ 
vading vital organs, may cause a general derangement of the 
system, which, by producing grave pathological conditions, 
fever, emaciation, anasasca, etc., as is seen in larval forms of 
tape worm in the brain, in strongyli of the lungs and bronchi 
in cattle and sheep, strongyli of the arteries in the horse, dis¬ 
toma hepaticum of cattle, or by wholesale migration to every 
part of the body, as in the first stages of trichinosis. 
In all such cases the entire carcass, and in those where the 
parasites, although in a passive state, are yet so abundant as to 
be abhorrent, all infested parts of the carcasses of the affected 
animals should be not only condemned and rendered inocu- 
ous under official supervision, since the condemnation of some 
kinds of parasitic meat, and allowing it to be consumed raw 
by dogs or other lower animals, renders the extermination ol 
such diseases impossible, and not infrequently gives the 
parasite opportunity to undergo one more stage of develop¬ 
ment and return to man in a far more dangerous form than 
that found in the condemned meat. 
Consequently, provision should be made for the complete 
destruction of these animal parasites before the condemned 
meat passes from official control. 
Under class B we place the flesh of animals diseased froir 
a malady not transmissible to man, but which may contair 
chemical substances, ptomaines or other organic substance! 
which, when ingested, may produce serious constitutional dis 
turbances. Included in this class we find a large number o 
sporadic affections accompanied by variations in temperature i 
nutrition, etc., of a more or less grave character, as in ordinal 
ary pneumonitis, pleuritis, enteritis, etc. It includes also ac 
long list of contagious diseases of animals, among which w< 
find the most! destructive epizootics, exerting in most case:« 
great influence on our national economy. Among these an 
