40
to elevations on the convex surface of the organ.In one adult rat the lungs
were the seat of localized emphysema.
No. 1.—Meld Bat (Nesokia providens).—Subcutaneously inoculated, 26th
December 1890, with 0.2 c.c. of blood containing numerous hæmatozoa, taken
from the Jugular Vein of Horse No. VII. The latent period lasted two days.
Death occurred on 6th January 1891, the tenth day of the disease.
Autopty.—Thoracic viscera healthy in appearance. The stomach externally
presented a normal appearance. On section a dark-red clot of blood was found
near the pyloric extremity about 1/12th of an inch in thickness, and extending
over one-sixth of the surface of the mucous membrane. On removal of the clot,
round, petechiated spots were visible on the rugæ, lying underneath the lining
epithelial layer. An enlarged gland attached to the great omentum occupied a
position outside and just opposite the seat of the internal hæmorrhage, Spleen
considerably enlarged. Kidneys and intestines healthy.
NOS. 2. and 3.—Inoculated subcutaneously on 7th January 1891, two field
rats (N, prov.); each one received 0.2 c.c. of blood containing numerous hæma-
tozoa taken from Jugular Vein of Horse No. VI.
No. 2.—The latent period occupied five days. Autopsy.—All the organs,
with the exception of the spleen, presented a healthy appearance. Spleen much.
increased in size, but tissues firm.
No. 3.—The latent period occupied five days. Autopsy.—All the organs,
with the exception of the spleen, presented a healthy appearance. Spleen much
increased in size,
FOWLS.
Two male birds (Gallus domesticus) were subcutaneously inoculated on 7th
January 1891, each receiving 0.2 c.c. of blood containing numerous hæmatozoa
taken from the Jugular Vein of Horse No. VI. As no symptoms supervened
and the blood presented no changes, the birds were re-inoculated on the 4th
February, each receiving 0.3 c.c. of blood containing numerous hæmatozoa
from Horse No. XI. These fowls were kept under careful observation and their
blood examined microscopically daily until June 12th, when it was decided
to subcutaneously inject a larger quantity. Consequently at 2 P.M. on that
date each bird received 1.0 c.c. of blood taken from the heart of Horse No. XIII
ten hours post mortem. No hæmatozoa appeared in their blood, and no other
symptoms were observed up to the 9th July,
Results negative.
PIGEONS.
Two pigeons, a male and a female bird, were inoculated subcutaneously
on 7th January 1891. Each received 0.2 c.c. of blood containing numerous
hæmatozoa taken from the Jugular Vein of Horse No. VI. The blood was
examined daily until February 25th, with negative results.
ANIMALS INOCULATED WITH OTHER FLUID THAN BLOOD.
URINE.—Subcutaneous inoculation of small animals with the Urine of
Horses (in an advanced stage of Surra), in which at the time of the secretion
being passed, hæmatozoa were present in large numbers in the blood.
No. 1 Guinea-pig.—Full grown, weight 988.0 grammes. 14th October
1891.—Temp. 1-20 P.M. 40.4°C. Subcutaneously injected 5.0 c.c. of urine slightly
acid in re-action. Sp. Gr. 1,014, and containing a few granular casts, and a
trace of albumen. This was a sample of the collected urine voided during the
previous twenty-four hours by Horse No. XXXVIII on the 50th day after inocula-
tion with Horse Surra blood. The hæmatozoa were swarming in the blood
during the period the excretion was being collected. Following day the 5.0 c.c.
injection was repeated. No toxic effects produced. One year later the animal
still alive and healthy.
No. 1. Rabbit.—White animal, pink eyes, full grown, weight 2,145 grammes.
14th October 1891.—Injected subcutaneously 10.0 c.c. of urine from the same
source as that used in the previous experiment. Slight toxic effects. October