clxxxvi
CASE No. XXXII— LIGHT CHESTNUT C. B. HORSE, aged, and fairly healthy.
9th July, 1891.—Temp. A.M. — P.M. 36.7°C. Blood healthy.
10th.— Temp. A.M. 36.4°C., P.M. 36.8°C. Blood healthy.
11th.—Temp. A.M. 35.8°C., P.M. 37.1°C. Blood healthy.
The animal was inoculated subcutaneously over the left shoulder with .3 c.c. of blood
taken from the right ventricle of the heart of Horse No. XXIII, eight hours after death.
The injected blood on the previous day contained very numerous hæmatozoa.
12th.—The animal appears in good health. There are no petechiæ on the conjunctival
membranes, the appetite is very good and the evacuations are normal in character. Temp.
A.M. 36.2°C. There are no hæmatozoa in the blood. Temp. P.M. 37.1°C.
13th.—The condition of the animal is unchanged. Temp. A.M.36°C. There are no
hæmatozoa in the blood. Temp. P.M. 37°C.
14th.—Condition unchanged. Temp. A.M. 36°C. There are no hæmatozoa in the
blood. Temp, P.M. 36.3°C.
15th.—Condition unchanged, with this exception that there is a very slight amount of
swelling and œdema at the seat of inoculation. Temp A.M. 35. 5°C. There are no hæma-
tozoa in the blood. Temp. P.M. 36.3°C.
16th—There is no increase in the swelling and œdema at the seat of inoculation and the
condition of the animal is unchanged. Temp. A.M. 35.4°C. No hæmatozoa in the blood.
Temp. P.M. 36.4°C.
17th.—Condition unchanged. Temp. A.M. 35.6°C. No hæmatozoa in the blood
Temp. P.M. 36.5°C.
18th.—Condition unchanged. Temp. A.M. 35.7°C. No hæmatozoa in the blood.
Temp. P.M. 36.7°C.
19th.—There has been no increase in swelling or œdema at the seat of inoculation since
the 16th instant and the condition of the animal remains unaltered. Temp. A.M. 36.1°C. No
hæmatozoa in the blood. Temp. P.M. 37.3°C.
20th—This morning the swelling has decreased in size at the seat of inoculation, the
animal appears in the same condition, the appetite is good, there are no conjunctival pe-
techiæ and the evacuations are normal in character. Temp. A.M. 37.3°C. The hæmatozoa
are numerous in the blood. Temp. P.M. 38°C.
21st.—At six o'clock this morning the animal showed signs of weakness, but was able
to stand without assistance. It shortly afterwards lay down, and rapidly becoming worse,
died at 8.30 A.M. Temp. A.M. 37.1°C. Up to the last the animal continued to eat and during.
the night had consumed the greater part of its coarse hay bedding.
AUTOPSY at 10 A.M.—The body is tolerably well nourished, there is no swelling or
œdema of the sheath, abdominal walls or at the point of inoculation on the left shoulder.
Thorax.—The pleural cavities are free from fluid and the pleurae from adhesions.
Lungs are large, well filled with air, and dotted over with small extravasations of
blood, for the most part of the size of a two-anna piece.
On section, blood flows freely from the cut surfaces, and the tissue appears healthy.
Heart.—Weighs 4 lbs. 7 ozs., is large, numerous petechiæ are dotted over the surface of
the muscular tissue, but all lie under the visceral pericardium. The right side is distended
with bood, but the left is contracted.
The right auricle contains some dark blood clots and a few petechias (sub-endocardial).
The right ventricle is distended with dark and decolourized clots and there are very
numerous extravasations of blood, some of them measuring ¼th to ½of an inch in length, lying
under the endocardial lining.
The left auricle contains a small quantity of dark fluid blood, but no pathological
changes. The left ventricular walls are hypertrophied, contain a little clot, and numercus
extravasations, several large in size. All the valves are healthy.
Liver is small, there are some changes denoting perihepatitis of old date, and also a few
small, round, calcareous bodies lying beneath the capsule on the convex surface of the organ.
On section, the tissues are dark in colour, but no calcareous bodies are seen pervading its
substance.
Stomach.—The external surface presents nothing pathological. On section, it con-
tains some semi-digested food. The cuticular portion is healthy in appearance, but the