CONTRIBUTION TO THE STUDY OF SWINE PLAGUE, ETC. 323 
full actual value of animals destroyed as tuberculous, in place 
of paying one-half the sound value, and to restrict the use of 
tuberculin. 
For the purpose of carrying out this law for the entire 
year 1895, the Legislature appropriated the sum of $150,000. 
CONTRIBUTION TO THE STUDY OF SWINE PLAGUE, HOG CHOL¬ 
ERA AND PNEUMOENTERITIS OF SWINE, 
By W. Silbersciimidt, M.D., Assistant to the Hygiene Institute, Zurich.* 
The authors, who have studied swine plague and hog cholera, 
especially in America, have supplied the bibliography of the 
subject with such a number of publications that it is necessary, 
so as not to lose the path, to give a resume of the principal 
papers published on the question. 
I rapidly pass by those which were anterior to the bacter¬ 
ial! era; they are due to Sutton (1850-1858), Snow (1867), Axe 
(1875), Law (1875), and Detmers (1877). 
It is Detmers, who, toward 1876-1877, discovered, in the 
blood of swine dead by the disease which was then called 
hog cholera , a microbe which he considered as specific. Bil¬ 
lings confirmed that discovery. Some years later Schutz (45)f 
described a microbe found and isolated during a porcine epi- 
demy in Germany, a microbe that Loeffler had already seen 
before him and which is known under the name of bacillus of 
Loeffler-Schutz. The disease is named Dezitsclfe Sweineseuche ; 
does it differ from swine plague is a point upon which Billings 
and Klein (24) do not agree. 
In 1886 Salmon (35),assisted by Theobald Smith, described a 
second organism and made of swine plague and hog cholera two 
distinct diseases. Billings (3, 4, 10) on his side tried to prove 
that there was but one epidemy in existence, which he called 
swine plague , and attributed to the micro-organism discovered 
in a case of hog cholera by Detmers, and confirmed by him 
(Billings.) 
♦Translated from the Annales de l’lnstitut Pasteur, 
t See Bibliography. 
