52 
EDITORIAL 
EDITORIAL, 
CHICKEN CHOLERA. 
The believers in the spontaneity of the development of con¬ 
tagions diseases have found in M. Pasteur a powerful opponent, 
who slowly, but surely, demonstrates by undeniable proofs that 
the virulent properties of those affections is due to the presence 
of microscopical organisms. A few years ago it was his wonder¬ 
ful discovery of the causes of the contagious disease of the silk 
worm ; later, the evident proof of the bacteridae as causes vi 
carbuncular affections ; and now it is his demonstration of the 
aetiology of chicken cholera, an affection which destroys so many 
of our valuable poultry, and brings on ruin to large poultry 
breeding establishments. 
But this last discovery goes farther. With some restrictions, 
justified by the limited number of experiments yet made, he 
shows that chicken cholera is not only due to the presence of a 
microbe, developing itself in the organism of the hen, as was 
already demonstrated by Perroncito and Toussaint, bnt that it 
can be prevented by inoculation—a fact which goes far in the 
prophilaxy of the disease, and which cannot escape the attention 
of our agriculturists. Prizes have been offered for proper means 
of treatment of this affection. We hope that the article 
which we reprint to-day will find room in the columns of our 
agricultural papers, and be read and put in practice by 
those who are engaged in the important undertaking of breed¬ 
ing and raising poultry. Veterinarians will, no doubt, read with 
interest, the long papers that M. Pasteur read before the Societe 
Centrale de Medecine Veterinaire, and which we reprint in full 
in this issue of the Review. 
PLEURO-PNEUMONIA. 
Our readers are aware that the appointment was made some 
time ago, by the Commissioner of Agriculture, of Dr. C. P. Lyman, 
M.R.C.V.S., to investigate to what extent pleuro-pneumonia was 
prevailing in the Eastern States. 
