386 
EDITORIAL. 
confirmed experiments made in 1883 and 1884 by proving 
that calves born of cows inoculated during gestation enjoy also 
the maternal immunity. The calves of three cows of the 
Willems lot, which were pregnant, showed how they were 
immunized, being born in the middle of a contagion and re¬ 
mained free from disease, though they were kept for more than 
a month with animals extensively diseased with pleuro-pneu- 
monia. 
Pneumo-Bacillus Uiquefaciens. —The results of the ex¬ 
periments of Pouilly-le-Fort have another meaning,—and one 
which seems to upset the fact announced by Arloing, that the 
pneumo-bacillus liquefaciens was what might be called the 
bacillus of contagious pleuro-pneumonia. Indeed, in one of 
the last reunions of the Societe Centrale M. Uigtneres, adjunct 
to the laboratory of Prof. Nocard, at Alfort, presented a paper 
establishing the important fact that this pneumo-bacillus lique¬ 
faciens was a normal host of healthy lungs. 
What may come from this discovery can be well suspected 
in relation to the theory of Arloing, who claims that the 
pneumo-bacillus is the germ of contagious pleuro-pneumonia—a 
fact which is doubted by many and not believed in by Prof. 
Nocard. Undoubtedly the experiments of Pouilly-le-Fort 
seem to give weight to the opinion of the well-known professor 
of Alfort. 
Cricoidectomy. —Since the publication of the various pro¬ 
cesses to perform arytenectomy and in the presence of the nu¬ 
merous cases of failure which have been met with in France, 
the operation of Mnller, Fleming and Cadiot seems to have lost 
many of its former admirers, and something else had to be 
looked for, which, if it did not prove a panacea, might at least 
give a sufficient satisfactory result to justify its admission into 
veterinary surgery. This appears to have been found in a new 
operation, sufficiently explained by its own name. It is simple, 
it is perfectly harmless, it has so far been followed by as many 
good results as those offered by arytenectomy. It is simple, as 
it consists merely in the exposure of the cricoid cartilage and 
