34
a few ecchymoses in the left auricle. Stomach presented a healthy appearance.
Liver enlarged. Spleen enlarged, a few sub-capsular ecchymoses. Kidneys pre-
sented a healthy appearance as also the mucous lining of the intestines. No
parasites.
Horse No. LVI1I.— Vide under heading of Rat Surra, Vol. II.
Horse No. LIX.— Country-Bred Entire, aged. Subcutaneouly inoculated on
the 3rd of May 1892 with 0.5 c.c. of blood containing numerous hæmatozoa drawn
from the Jugular Vein of Horse No. LVIII ante mortem. No change took place at
the seat of inoculation until the fourth day when a small raised tumor, one inch in
diameter, was observed and increased until the fifth day when it measured 3.5" x 2",
at 1 P.M. On the sixth day the tumor became flaccid, &c, and a few hæmatozoa
were found in the blood of the general circulation. The latent period occupied
five days. The fever was of the continued type accompanied by remissions but by
no intermission, and persisted from the first day of the disease until death on the
20th May, the 13th day of the disease.
Autopsy.—Emaciation, gelatinous exudation in quantity on the under-snrface
of the belly ; sub-pleural ecchymoses, yellow staining of the tissues of the lungs.
Pericardial fluid, few ounces of a dark-yellow colour. Heart, base surrounded by
orange gelatinous exudation ; sub-pericardial ecchymoses, sub-endocardial extra-
vasations well marked in the right ventricle but few in the right auricle and left
ventricle and absent from the left auricle. Stomach healthy. Liver enlarged,
seat of old perihepatitis, also calcareous bodies invaded the tissues. Spleen very
much enlarged, numerous sub-capsular petechias. Kidneys, few petechias on the
cortical surface which dipped into the tissues of the organs. Intestines presented
a normal appearance.
Horse No. LXIV.—Grey,
Country-Bred Pony, aged. Subcutaneously
inoculated on the 14th June 1892 with 0.5c.c. of blood containing a few
hæmatozoa taken from the left Jugular Vein of Horse No. LXV ante mortem.
A small raised tumor appeared at the seat of inoculation accompanied by the usual
symptoms, which continued to increase until the seventh clay after the injection
of the blood. On the morning of the eighth day the tumor which lately had
been tense and tender then appeared flaccid and soft and the hæmatozoa were
found to be very numerous in the blood of the general circulation. The latent
period occupied seven days. There was a sudden rise of temperature on the
first day of the disease from 37.6°C. to 40.3C. which reached 41.1°C. on the fourth
day. From the latter date until the 17th day, on which death took place, the
temperature assumed the continued type marked by daily remissions but no
intermission. The hæmatozoon was not absent from the blood from its first
appearance in the blood until death on the 7th July, or 17th of the disease.
Autopsy.—Emaciation, œdema of the extremities; localized emphysema of
the apices of the lungs. Pericardium contained three ounces of fluid. Heart,
base surrounded with yellow-coloured exudation, few petechias. Left ventricle
contained a few sub-endocardial extravasations on the musculi papillares. Liver,
old perihepatitis, few yellow concretions. Spleen, enlarged, sub-capsular petechias.
Stomach normal, except Spiroptera megastoma tumor. Kidneys, Small and
large intestines, healthy.
PART III.
EXPERIMENTAL CASES.
Other Animals.
Donkey I.—This animal was in fair condition, but aged. Subcutaneously
inoculated at 5-30 P. M. on the 9th February 1893 with 2.0c.c. of blood con-
taining numerous hæmatozoa taken from the Jugular Vein of Horse No. LXXXIV
immediately after death. On the third day after the injection of blood a small
swelling was noticed on manipulation at the seat of inoculation. The latent
period occupied 3½ days, the hæmatozoon having been discovered in the blood
on the morning of the 13th February. The temperature remained normal and
sub-normal until the morning of the second day of the disease when it gradu-
ally became elevated and reached a maximum of 41°C. on the evening of the