D. E. SALMON. 
546 
yet.” The affected cattle at the United States quarantine, and 
also at the severel State quarantines, with the exception of a very 
few instances, are having a mild form of the disease, and no ani¬ 
mals have yet been destroyed or died, and every precaution will 
be taken by the town and State authorities to prevent its further 
spread. Should any new cases occur, I will notify you of the 
fact and the results. 
DISCOVERY OF THE GERM OF SWINE-PLAGUE.* 
By D. E. Salmon, V.M. 
In a communication read before the Paris Academy of 
Sciences, Nov. 26, 1883, by M. Pasteur, the following paragraph 
occurs:— 
As soon as I received his [Thuillier’s] first letters from the 
commune of Peux, in the department of Vienne, it was certain 
that he had perceived in the blood and humors of the dead hogs 
a new microbion which it seemed should be the author of the 
disease. This microbion had escaped the observation of Dr. 
Klein of London, in the course of a long and remarkable ac¬ 
count of autopsies and experiments published three years before 
in the report of the English sanitary office. Dr. Klein stated 
that a microbion was the cause of the affection ; but he committed 
an error, for the microbion that he described has no connection 
with the cause of rouget. Thuillier by his observation had over¬ 
come the principal difficulty to a knowledge of this disease of 
the hog. Historic truth, however, obliges me to declare, that in 
1882, and also in the month of March, the microbion of rouget 
was signalled at Chicago, in America, by Professor Detmers, in a 
paper which does great honor to its author. Thuillier could not 
have been acquainted with this paper, and I myself only learned 
of its existence very recently. The observation of the microbion 
of rouget of the hog by Thuillier dates from the 15th of March, 
1882.” f 
'‘Reprint from Science. 
t ‘ ‘ La vaccination du rouget des porces a Vaide du virus mortel attenue de cette 
maladie. Pasteur et Thuillier. Comptes rendus, xcvii. p. 1164. 
It is so very seldom that investigations on this side of the 
water receive any notice whatever abroad, and particularly in 
