American Veterinary Review. 
JULY, 1898. 
All co 77 imunicatio 7 is foi' publication or in reference thereto shotdd be addressed to Prof. 
Roscoe R. Bell, Seventh Ave. Sf Union St., Borough of Brooklyn, Ne%v York City. 
EDITORIAL. 
EUROPEAN CHRONICLES. 
Pleuro-pneumonia—Its Microbe. —From a practical 
point of view almost anything relative to pleuro-pnenmonia can 
be but of secondary importance to American veterinarians. The 
scourge has played a sad havoc among our cattle. Through the 
efforts and masterwork of the Bureau of Animal Industry it has 
been stamped out of the United States, and through the vigi¬ 
lance of our quarantine officers it will never reenter the country. 
We read of outbreaks oeeurring in various parts of Europe now 
and then, and ask ourselves why don’t they follow America’s 
example ? But that is all. Practically speaking, the disease 
has lost its interesting part with us. 
It is not so, however, with the scientific problems that re¬ 
main yet unknown in it, and among those one exists whieh 
has attraeted the attention of some of the most brilliant men in 
our profession—that is, the specific agent of the pleuro-pneu- 
monic virus—its separation, its culture. Many have tried to 
detect it. All have failed. The serosity of the pluero-pneu- 
nionic lung contains the virus ; but what the germ is no one 
has succeeded in discovering nor been able to cultivate it, and 
the most virulent serosity will fail to give the slightest culture 
in any of the usual media., in the air or in vacuum. Although 
Arloing, Nocard and many others have made numerous attempts 
in their investigations, their efforts have remained always un¬ 
successful to this date. 
225 
