164 
GEORGE N. KINNELL. 
there ever since. She is now a nice plump four-year-old cow 
and on January 12th of this year was tested with tuberculin 
without giving any reaction. 
This stable, arranged for five cows, measured I5j^xi4j^ 
feet, ceiling feet, two windows, one north and one south, 
one ventilator one foot square ; average cubic space per cow 
approximately 337 cubic feet. 
Reviewing the history of these two cases we are confronted 
with a number of pregnant facts. Taking the Sloane herd these 
facts are : 
ist. That by the aid of tuberculin fourteen diseased animals 
were eliminated from a herd of thirty-five. 
2d. That eleven heifers and one young bull were all sired 
by a diseased bull. 
3d. That of these eleven heifers seven were born of diseased 
mothers. 
4th. That all of them were reared on milk most of which 
was drawn from diseased cows. 
5th. That they never came in direct contact with the 
diseased animals. 
m 
6th. That notwithstanding the facts that all were sired by a 
diseased bull, that seven of them were born of tuberculous 
mothers, that all of them were reared on milk from tuberculous 
cows, and that all of them have been kept in a stable which 
was previously the home of thirteen diseased cows, that not¬ 
withstanding these facts we find at the end of four years that at 
least five of these eleven animals are absolutely free from tuber¬ 
culosis and that in every human probability all of them that 
now remain alive are likewise free from this disease. 
7th. Of the cows introduced from Long Island and placed 
in this previously infected place some have died and been found 
healthy and according to every appearance, and in accordance with 
every analogy, these that remain are likewise free from disease. 
The lessons to be derived from the herd of Dr. Colt point 
exactly the same conclusions, and yet here we must recognize a 
very material and important difference. In the case of Mr. 
