54 
F. S. BILLINGS. 
directly stated in any writer before this period.”—[Surgery, 
p. 177.] 
Professor Keys writes: “ Syphilis was not recognized as b 
morbid entity until the end of the fifteenth century, at and after 
the period of the siege of Naples (1494—5) by Charles VIII. 
That then, and for a considerable time thereafter, the disease 
behaved with unwonted virulence, attacking all classes of society, 
and killing a large number of its victims. From that time to 
the present day, syphilis has been a subject of peculiar interest 
to all classes of medical men/’ 
\To be continued .] 
TRICHIN/E, 
* 
ft A LECTURE DELIVERED BEFORE THE STUDENTS OF THE 
AMERICAN VETERINARY COLLEGE. 
By F. S. Billings, V. M. 
• {Continued from page 16.) 
With reference to the disease itself among swine, 1 have 
the following from the “Magazine fur die Jesammte Thierheil- 
kunde ” vol. 31. p. 6,1865. 
These experiments have demonstrated that the consumption 
of trichinous flesh by swine, with the consequent development of 
the embryos in their intestines, and their migration and lodgment 
in the muscles, may indeed cause disease, but the phenomena of 
the same have neither that constancy or character which will per¬ 
mit of looking upon them as pathognomonic, i. e. peculiar to this 
disease alone, during the life of swine so infected. All the swine 
which were fed with trichinous flesh became ill within a few 
days after its consumption. The most constant phenomena pre¬ 
sented were as follows : 
Diarrhoea, but not constant, but interrupted frequently by the 
passage of more solid foeces. Appetite irregular, sometimes 
more, sometimes less, sometimes entirely wanting. Phe¬ 
nomena indicative of abdominal pains were often observable, such 
as uneasiness, burying themselves in the straw, turgidity of the 
