242 
EDITORIAL. 
atory and predisposing condition in most cases of laryngeal 
paralysis, which is undoubtedly the most frequent cause of the 
disease. 
For Prof. Fabat, then, and it is an opinion which seems to be 
gaining ground, heredity exists for some cases, such as in those 
resulting from vices of conformation—there it is an indirect 
heredity—but it does not exist for roaring due to other causes, 
such as paralysis of the larynx. In those there is only a heredo- 
predisposition which must be prevented. 
Infectious diseases playing the greatest part in the causation 
of roaring, its prophylaxy seems to demand the prevention of 
their evolution. 
Another laurel for microbiologists to obtain. Who some 
years ago would have dreamt of such therapeuty for roaring ? 
* 
* * 
Tuberculosis — Obligatory Declaration. —This sani¬ 
tary measure, so important in veterinary sanitary medicine, and 
which in that science covers all contagious diseases, seems to be 
different in human medicine, at least, in some countries. In 
France this measure has recently been the object of action at 
the hands of the Academie de Medecine in Paris, thanks to the 
action of Professor Grancher, who succeeded in carrying a mo¬ 
tion to the effect u that tuberculosis be entered in the list of 
diseases for which obligatory declaration is imposed.” 
This was obtained after a discussion before the same bodv 
of physicians in relation to a similar admission of measles in 
the same list, when Professor Grancher showed, figures in hand, 
that when the six great zymotic diseases are considered, vari¬ 
ola, typhoid fever, diphtheria, scarlatina, etc., the conclusion is 
arrived at that it is impossible, with, perhaps, diphtheria ex¬ 
cepted, to tell the part of disinfection in the reduction of mor¬ 
tality. 
This being the case, Grancher asks why tuberculosis—the 
most fatal of all diseases—is not first among the diseases for which 
declaration is obligatory ?—no doubt on account of sentiments to 
be respected, it is true, but, nevertheless, secondary. It is gener- 
