Thermometry in contagious peEuro-pneumonia. 
189 
The period of increase was observed in cow No. 6, 3d obser¬ 
vation. In lier, the temperature, which on the 30th of August, 
was 38°8, rose to 40°8 the 1st of October. In No. 1, 3d observa¬ 
tion, the temperature was 38°9 the 12th of August, on the 21st 
it marked, after some oscillations, 40°7 ; in No. 3, 4th observation, 
the thermometer on the 14tli of August, registered 39°5, then 
40°1 the 17th, and 41°2 the 21st. In No. 4, 8th observation, for 
two days the temperature was 38°3 and 40°. 
In No. 1, 2nd observation, the instrument registered 38°5. 
Growing weak. She was killed the 29tli of June. 
No. 2, 6th observation, temperature 39°. Killed the 21st of 
August. 
No. 2, 10th observation, temperature 39°3. In way of re¬ 
covery. Two days later she registered 37°4. 
No. 1, 3d observation, the temperature, on the 21st of Au¬ 
gust, from 40°7 began to go down, in consequence of convales¬ 
cence. On September the 8th, it is but 37°0. 
No. 3, 3d observation, the temperature is 39° on the 11th of 
August, 39°5 the 13th, then comes down to 37°7 on the 8th of 
September. Cow cured. 
What is the meaning of that diminution of the temperature 
after the marked increase ? Either a return to health (No. 2, 
10th observation. No. 1, 3d and No. 3, 3d), or approaching death 
(No. 1, 2nd observation, No. 3, 6th). It was then the period of 
decline. 
From the above, let us conclude that the invasion of pleuro¬ 
pneumonia, not easy to recognize, is accompanied with an increase 
of temperature. This continues during the period of increase , and 
is at its maximum at the period of acme. From that it diminishes 
and indicates the period of decline towards recovery, (slow dimi¬ 
nution) or towards death (probably more rapid, I say probably, 
not having had the opportunity to confirm it by leaving the ani¬ 
mals die). 
But there is a period preceding that of invasion; it is the in¬ 
cubative stage. It cannot be recognized or suspected by the use 
of the thermometer. Here is the proof: Cow No. 4, 8th obser¬ 
vation, had a temperature of 38°3 the IStli of November; she was 
