THE TUBERCULIN TEST. 
533 
If I find all animals normal, nor rising the 2 degrees give any 
other cause for rise of temperature, the next day I inject tuber¬ 
culin at 8 P. M., and begin to take the temperature at 6 A. M. 
next morning, taking the temperature every three hours. You 
will generally find the temperature of an affected animal the 
highest at from 13 to 16 hours after injection and generally it 
will begin to recede at 21 hours, therefore not necessary to take 
any more readings of the thermometer, only in occasional cases, 
where there is a gradual rise up to that time. The affected 
animals during the forenoon may have a chill, shiver, and if 
the thoracic cavity is affected or the adjacent glands, the animal 
generally coughs a good deal more than usual while undergoing 
the test. 
The animals not affected do not evince any change what¬ 
ever. It is not uncommon for an animal affected to run up 5 
degrees. The animals in the incipient stage of the disease 
react the highest, the ones permeated with the disease show the 
least reaction. I find that by giving larger doses than is 
usually prescribed to chronic cases, they will react stronger. I 
have, in various parts of this State, post-mortemed 278 head of 
cattle of all breeds and ages. In every case where the animal 
reacted 2 degrees, barring one, I have had no trouble to find the 
disease. I have held post-mortems in every case where there 
has been a part of a herd affected, to satisfy the owner, for in 
many cases it would hardly be believed that the animals were 
diseased until it is shown on the post-mortem. An expert would 
not be able to tell in those cases, without the aid of the tuber¬ 
culin test; thus the animal may be in condition to throw off the 
bacillus and spread the contagion long before the owner notices 
that the animal is sick. This of course necessitates the 
slaughter of animals in the incipient stage of the disease or the 
isolation of the same from those not reacting. 
WHERE MO.ST PREVALENT. 
The older the dairy country, the more prevalent we find the 
disease. It is more widely disseminated in the southern part 
