218 NATURAL HISTORY MISCELLANY. 
chinous animals, for it has been ases — to reproduce them 
by artificial feeding within these an 
A committee appointed by the BER Society of Physicians, at 
Vienna, has just presented a report on trichinosis, in which it is stated 
that the real source of infection in swine lies entirely in the ri In 
Austria the ith Sse was not more than four pr. cent. The com- 
artificial pac of the disease from the rat to the cat, t 
in great qua ntity, and such persons, not sick enough to keep the 
house, are the probable sources of infection in swine. It has, in fact, 
swine are anok again killed until the next general slaughtering sea- 
n comes, when another follows, to be succeeded by others after a 
iimilar interval. It may also be possible that portions of trichinous 
ged be 
ne have access to them; and lastly, it is not impossible that swine 
may infect each other by intestinal tHichine: alone. 
Trichin osis is no new disease. It existed many years ago, and it is 
as old as the beams of pork eating; we are only beginning 
to recognize it. Ince nn aga of Europe where raw pork is large ely 
4 in nearly all of which 
