THE MICROBE OF PLEURO-PNEUMONIA. 
231 
possibility. The members of the Assoeiation displayed a' com¬ 
mendable spirit in their desire to elevate their military breth¬ 
ren, and to that end a committee to confer with the State 
Association was appointed, as a result of which the sum of 
$200 was jointly pledged to defray the expenses of a committee 
sent to Washington to urge the passage of the Army Bill. We 
applaud the spirit of our Keystone brethren, and trust their 
example may bring forth a concerted action all over the 
country, and that the approaching meeting at Omaha may take 
up the matter with so much enthusiasm as to be practically 
irresistible. 
ORIGINAL ARTICLES. 
THE MICROBE OF PLEURO-PNEUMONIA. 
By mm. Nocard and Roux. 
With the collaboration of MM. Borel., Salimbeni and Dujardin-Beaunietz. 
Translated by A. Liautard. 
The essential lesion of contagious pleuro-pneumonia of cat¬ 
tle consists in the distension of the meshes of the interlobular 
connective tissue by a large quantity of albuminous, yellowish 
and limpid serosity. 
This serosity is very virulent. 
Let us inoculate one drop of it in the subcutaneous cellular 
tissue of a susceptible cow : after an incubation, never less than 
eight days, but which may last twenty-five or more, an inflam¬ 
matory, warm, tense and painful swelling will appear, whose 
dimensions vary considerably, according to the seat of the inoc¬ 
ulation and the subjects inoculated. 
If the virulent serosity is deposited under the skin of the 
trunk or the upper part of the extremities, it promotes, with a 
severe fever, a large swelling, incrusting rapidly, often followed 
by death. At the autopsy, the meshes of the cellular tissue are 
found distended by an enormous quantity of yellow and limpid 
serosity, coagulated here and there into gelatinous masses; the ex- 
i 
