EDITORIAL. 
175 
ficant, already encysted, perhaps not virulent, at least of little danger to the point of view 
oi contagion. By opposition, I could mention a number of cases which did not stop to re¬ 
act to injections of tuberculin repeated 15 days apart. In many establishments I know the 
test is renewed every 6 months and every 3 months, the tuberculous subjects, recognized 
as such at the first, are still reacting.” 
Por Prof. Nocard, as for almost all veterinarians, the diag¬ 
nostic power of tuberculin is well established,—and his method 
to make agriculturists and breeders know its value is one that 
can be but beneficial to the cause of the control of tuberculosis. 
MaeeEin. —If the value of tuberculin has found in Prof. 
Nocard a champion, so to speak, he can also claim the same ti¬ 
tle for mallein, notwithstanding the objections that are pre¬ 
sented to its general use by some French authorities and princi¬ 
pal!) by Mr. C. Leblanc. While this last eminent veterinarian 
does not deny that mallein has great value, he hesitates to ac¬ 
cept it as a panacea and specially objects to its general use in 
large establishments, where glanders would exist, and in which 
after malleination, numerous animals condemned by the test 
would be discharged and might after all be found in perfect 
health at post mortem. This amounts to saying that mallein 
will not always tell the truth ; and Mr. Leblanc bases his opin¬ 
ion upon the results observed in some cases where no lesions 
were found, except translucid tubercles, which he cannot con¬ 
sider as lesions of glanders, inoculation of their contents having 
failed to produce the disease. 
In answer to the severe criticisms of Mr. Leblanc, whose 
authority in the matter is not to be ignored, Prof. Nocard has 
recently carried out experiments which he reported at a meeting 
of the Societe Centrale which go to substantiate not only his for¬ 
mer statements in relation to the propagation of glanders by the 
digestive tract, but also proves that the translucid tubercle is be¬ 
yond doubt a glanderous lesion , and constitutes the first stage of 
the evolution of the classical tubercle; and that the translucid 
tubercles are much less rich in microbes than the caseous tubercles 
and that the microbes which they contain are rapidly destroyed by 
the cells. 
For some of us who have had horses destroyed for glanders 
