26
petechiæ dotted over the cuticular mucous membrane of the stomach, and
thickening of the pyloric opening. Spleen and liver large and petechiated.
Intestines, ditto. This case was for some days submitted to a treatment by sub
cutaneous injection of Mercuric Perchloride, and later to that of Iodine and
Iodide of Potassium.
Horse No. VII.-—White, 0. B. horse, aged. Subcutaneously inoculated on
the 10th December 1890, with 1.0 c.c. of blood serum, taken from Horse No. III
two hours post mortem. The latent period occupied eight days. The tem
perature rose from 37.7°C. to 39.3°C. on the day before the appearance of the
hæmatozoon. From this date until death on the tenth day of the disease the fever
assumed the continued type with marked remissions in the mornings, but with no
intermission. Marked pathological lesions in the heart, liver, spleen, &c.
Horse No. VIII.—Bay Country-Bred Gelding, aged 10 years. Inocu
lated subcutaneously on 19th December 1890 with 1.0 c.c. of blood taken
from the Internal Jugular Vein of Horse No. VII during life. The swelling at
the seat of inoculation became evident on the following day and increased until
the morning of the fifth day, when it remained stationary until the expiration
of one hundred and twenty hours. At that time the tension and tenderness
of the part had partially disappeared and the hæmatozoon was discovered on
microscopical examination of the blood. The latent period occupied five days.
The temperature fell several points on the morning following inoculation but by
the following morning had risen to the extent of 2.1°C, but by the morning of
the fourth day had again fallen 1.2˚C. From this date the fever assumed the
continued type with irregular periods of intermission and several rises and sudden
falls in the temperature.
Autopsy.—Small quantity of fluid in the pleural cavities, increase in the
quantity of pericardial fluid, several large sub-endocardial extravasations, the
largest being 1.5" x .75", involving the right and left ventricles of the heart.
Liver much increased in size ; spleen and stomach normal.
Horse No. XI.—Chestnut Country-Bred, Entire, aged. Subcutaneously
inoculated on 11th January 1891 with 1.0 c.c. of blood taken from the heart
of Horse No. VIII, 10.5 hours P.M. The latent period occupied eleven days. The
temperature varied between 38.8° C. and 37.6° C. until the morning of the
eighth day after inoculation, when it commenced to rise, and attained 40.5° C. on
the morning of the tenth day ; it then gradually fell until the morning of the
twelfth day, when the hæmatozoon was discovered in. the blood. From this
latter date until death, on the thirty-fifth day of the disease, the fever assumed
the continued type with intermissions at irregular periods.
Autopsy.—Body considerably emaciated. Twenty ounces blood-stained fluid
in the right pleural cavity. Lungs the seat of sub-pleural ecchymoses and con-
cretions ; localized emphysema at the apices. Heart presented externally a few
sub-pericardial extravasations. On section.—Cavities free, with the exception of
the left Ventricle which contained numerous, extensive sub-endocardial extrava
sations. Liver small ; old perihepatitis of right lobe. Spleen, few sub-capsular
petechiæ. Kidneys healthy. Stomach.—Villous portion presented a few, small,
isolated patches of congestion ; no ulceration.
Horse No. XII.—Vide Rat Surra, Vol. II.
Horse No. XIII.—Vide Rat Surra, Vol. II.
Horse No. XIV.—Grey Country-Bred Galloway, entire, aged. Inoculated
on the 30th January 1891, with 0.7 c.c. of blood directly into the Internal
Jugular Vein, taken from Horse No. XI during life. The latent period occupied
five days. On the day following the inoculation the temperature suddenly rose
from 37.3°C. to 39.5°C. followed on the day previous to the appearance of the
organism in the blood by a sudden fall from 39.6°C. to 36.2°C. or 3.4°C. On the
evening of the same day, the temperature again rose to 38.7°C. and steadily
continued its course until the evening of the second day of the disease, when it
registered 40.1°C. The fever then assumed the continued type accompanied by
remissions and with irregular periods of intermission until the twenty-first day
of the disease, when it began to gradually fall until the time of death on the