352 
M. ARLOINGr. 
If one has to deal with an abdominal form, besides the 
probability derived from the emaciation, diarrhoea, state of 
the skin and hair, great importance must be attached, says M. 
Cagny, to a special intermittent indigestion, which disappears 
and then reappears after the next meal. This indigestion 
appears to be due to a swelling of the mesenteric glands. The 
diagnosis in this case being made rather with the eyes of the 
mind than with those of the body, the veterinarian will do 
well to fortify himself, if possible, with other indications. 
He will carefully explore the udder and all the points 
where he has some chance of encountering tumefied lymphatic 
glands. A mammary nodosity or a hypertrophied lymphatic 
gland would give a very great assurance to the diagnosis. 
M. Guittard, in a work in course of publication, also 
attaches to intermittent tympanitis a marked significance. 
If the practitioner is sometimes puzzled despite the 
presence of the symptoms which we have mentioned, and of 
daily oscillation of the rectal temperature, etc., etc., he ought 
to be all the more perplexed when these symptoms exist singly, 
or when they are more or less marked by concomitant dis¬ 
turbance of doubtful value. 
In these difficult cases recourse can be had to the search 
for the tubercle bacilli, or, better still, to test inoculations. 
Koch’s bacillus in pulmonary tuberculosis is frequently 
discharged along with the bronchial mucus. This mucus 
may be stained by the Koch-Ehrlich method, and one may see 
in the preparation the characteristic bacillus, or, better, the 
mucus can be inoculated by injection into the subcutaneous 
tissue of the guinea-pig—an animal eminently suited for re¬ 
vealing the presence of the virulent micro-organism by a rapid 
tuberculisation of the lymphatic glands. 
We have demonstrated the great usefulness of the guinea- 
pig as a test subject, and M. Nocard has confirmed our asser¬ 
tions. 
MM. Verneuiland Clado have advised inoculation into the 
peritoneum in order to hasten the formation of tubercles. 
Experiment has proved that the intra-peritoneal injection 
hardly gains a few days. It is not, then, indispensable to em- 
