has smitten all Europe.

The author takes this occasion to acknowledge the receipt of two very
ably written articles upon this subject, which, in consequence of their
length and the comparatively limited space allotted, he is reluctantly
compelled to omit. One is from the pen of R. McClure, V.S., and the
other from Isaiah Michener, V.S. For the benefit his readers, however,
he desires to make a single extract from the last-named communication,
without being considered as endorsing the opinion advanced therein:--

"I am inclined to favor the hypothesis that pleuro-pneumonia is produced
by animalculae, and that these enter the lungs by myriads, and thereby
set up irritation and inflammation, which lead to all the phenomena and
pathological conditions which are to be found upon dissection. This is
my opinion of the cause of the malignant pleuro-pneumonia which has
existed in the United States for the last seven years."

After writing the foregoing, the author was informed that this disease
had made its appearance in Mr. Logan's herd, already mentioned as
exposed. He was called to visit the herd of Mr. G. Satterthwaite, who
likewise lost two cows, and had two cows and a calf sick at the time of
sending for him.

PNEUMONIA.

There are two conditions of the lungs known as pneumonia,--one, the
inflammatory, and the other, the congestive stage. The former may follow
an attack of bronchitis, or it may have a spontaneous origin. The
congestive is generally the result of cold suddenly applied to an
overheated animal, causing a determination of blood to the lungs, which
sometimes causes death by suffocation.

_Symptoms._--The disease is preceded by a shivering fit; dry skin;
staring coat; clammy mouth; short cough; Schneiderian membrane (of the
nose) very much reddened; respiration hurried or laborious. In the
congestive stage, upon applying the ear to the sides, no sound will be
detected; While in the inflammatory stage, a crackling or crepitating
sound will be distinctively heard.

_Treatment._--In the congestive stage, plenty of pure air will be
necessary. Bleed freely; and give in drench one pound of Glauber-salts,
with two drachms of Jamaica ginger. Nothing more will be required by way
of treatment.

In the inflammatory stage, bleeding should seldom be resorted to, except
where the animal is in full condition. Apply the following blister to
the sides, well rubbed in: oil of turpentine, one ounce; croton-oil,
twelve