174 
COLEMAN NOCKOLDS. 
under the skin of the shoulder or at your discretion. If within 
twenty-four hours after the injection has been made the temper¬ 
ature should rise more than two degrees, you may be pretty 
sure that the animal is suffering from tuberculosis. The dose 
of tuberculin to be used varies ; some manufacturers advise 
more than others, but directions generally can be had with the 
medicament. It is not advisable to apply the test while a cow is 
in heat, or to change the habits of the animal during the time 
of using the test. Tuberculin has been advocated for the cure 
of consumption among human patients, but no doubt those 
cases reported as cures from its use were not tuberculosis at all, 
as experience amongst the lower animals shows that the appli¬ 
cation of tuberculin, even to a mild case of tuberculosis, causes 
the disease to manifest itself in the most acute form. Of course, 
the most positive method of diagnosticating tuberculosis is by 
locating the germ. It is often hard to do in the lower ani¬ 
mals, but examine the discharge from mouth, nose, vagina, 
rectum or milk by the ordinary methods; to the milk add a 
little acetic acid, and then strain and examine. 
Another method is by inoculating a small animal, as the 
guinea-pig. There would be found upon post-mortem all the 
pathological lesions of tuberculosis, and the bacilli can be lo¬ 
cated by usual methods in the tissues. Suspected cases should 
be reported, to either the State or local board of health, who will 
in most cases make necessary inquiries and examination and 
order the destruction and disposal of the affected animals. 
Hydrophobia or rabies : A contagious disease of the can¬ 
ine, which can be transmitted to man. Generally man be¬ 
comes infected through being bitten by a rabid dog directly or 
by another animal that has been bitten by a rabid dog. As you 
know, this disease is quite common in this and other countries. 
Proper regulations not only lessen its frequency, but may com¬ 
pletely suppress it, as has been shown in Sweden, where not 
one death has occurred since 1870, though the previous mortal- 
» 
ity was eight to ten persons yearly. 
Rabies in the dog may take two forms, the mute or the 
