cclxxiii
23rd.—Both ears of A are swollen and œdematous ; on examination of the œdema-fluid,
no hæmatozoa were discovered.
24th.—The ears of A more œdematous.
25th.—The ears of A.—The œdema has increased.
26th.—A—Face generally increased in size, ears red in colour, hot and œdematous ;
eyelids swollen. Hæmatozoa absent from the blood. From the right and left ears when
pricked, perfectly clear, colourless serum exudes. On examination it is found to contain
large and active hæmatozoa, 7 to 10 in each field of the microscope. The saliva contains
no hæmatozoa.
B—Face swollen, eyelids almost closed from the œdematous condition of the lids.
27th.—A—The exudation from the ears is now yellow in colour and appears to be
identical with the exudation present in Horse Surra; the former contains large numbers of
hæmatozoa ; these for the most part are not found singly, but in twos and threes, joined
together at the extremity, and whirl round and round. The individual hæmatozoon is
large ; each presents one, sometimes two dark granules, the largest occupying the middle of
the body when at rest. In the serum of the ear, the hæmatozoa are numerous, but there
are only few in the blood.
28th.— A—Tunica vaginalis of the left testicle is somewhat distended with fluid which on
microscopical examination is found to contain numerous round granules, varying considerably
in size, but no hæmatozoa. Prepuce is œdematous, hæmatozoa numerous in the fluid ;
here they are observed singly, in pairs (end to end) and in stars. In some fields, there are
as many as 200 hæmatozoa present, the majority of which have the granule or granules in
the broad part of the body. The prepućes of B and C are in a similar condition to that
of A.
29th.—The fluid taken from tunica vaginalis of A,from which the hæmatozoa were
yesterday absent, contains this morning numerous organisms and the individual hæmatozoon
is well developed.
30th.—A—Œdema disappearing from the ears, slight amount present involving the left
ear. Hæmatozoa absent from the blood, but there are a few present in the œdematous
fluid from the left ear.
Rabbit A.—Inoculated 12th December 1890, died 10th January 1891, 29 days.
AUTOPSY 2 hours after death.
Lungs.—The apices and free edges of both lungs are the seat of emphysema. The
right one presents hypostatic congestion on its superior surface; the left one is a pale pink
in colour.
Stomach.—Distended with semi-digested green food. Mucous membrane is of a reddish
tint, is thickened, but there are no extravasations.
Liver.—Large and friable.
Spleen and Kidneys.—Organs appear healthy.
Rabbit B.-Inoculated
12th December 1890, died 8th January 1891, 27 days.
AUTOPSY.—Half
an hour after death.
Body somewhat emaciated.
Lungs.—Localized emphysema at the apices and along the free edges; on section fluid
blood exudes freely from the cut surfaces, and frothy mucus escapes from the cut ends of
the bronchial tubes.
Heart.—Distended with blood clots ; no sub-endocardial petechiæ.
Liver.—Large.
Spleen.—Somewhat enlarged and presents several small petechiæ on the surface of
the capsule.
Kidneys.—Capsules strip easily and reveal the presence of several round petechiated
spots on the cortical surface of each organ.
Bladder.—Distended with urine, otherwise healthy.
Rabbit C.—Inoculated, 12th December 1890, died 26th January 1891, 45 days.
AUTOPSY.—Six hours after death, the animal dying in the early morning.
Body emaciated. Eyelids glued together with dried purulent secretion. The openings
of the nostrils are in a similar condition; on section nasal mucous membrane presents a
dark red colour and is covered with a purulent secretion.
B 1086—69 ap