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which clay the animal succumbed, the fever was of the continued type, with daily
remissions, but only abortive attempts at intermissions. On admission the
urine was found to contain a trace of albumen, but it was absent subsequently.
Treatment.—This animal was subjected to a treatment consisting of Arsenic
in solution only, and the hæmatozoon was absent from the blood for a period of
seven days.
Autopsy.—Body emaciated ; hind limbs slightly œdematous. Thorax. —Both
pleural cavities contained a considerable quantity of fluid and presented ex
tensive adhesions between the costal and parietal pleurae.
Right lung.—Emphysema at the apex and inferior border ; sub-pleural ex-
travasations. Left lung.—Dotted over with sub-pleural extravasations ; anterior
third, the seat of consolidation, posterior ⅔rds was fully distended with air.
Pericardium contained 4 ounces of a turbid, amber fluid.
Heart.— Base surrounded with gelatinous exudation, dotted over with sub-
pericardial ecchymoses, as also a small patch at the apex of the organ. The
cavities on the right side were blood-stained. The left auricle presented a
healthy appearance. The cavity of the left ventricle, especially on its upper
half, was the seat of numerous and extensive sub-endocardial extravasations, al
though the largest haemorrhages were as usual situated on the surface of the
musculi-papillares. Abdominal cavity was free from fluid. Liver enlarged ;
old signs of perihepatitis; tissues on section presented nutmeg appearance.
Spleen, small, numerous sub-capsular petechiæ.
Kidneys.—Cortical portion congested, medullary portion healthy.
Stomach.— Cuticular portion healthy, villous-portion presented a Spiroptera
tumor of some size near the line of demarcation ; otherwise healthy. Intestines
presented a normal appearance.
No. LXXIX.—A Chestnut Australian gelding, aged 12 years, had been six
years in the country. First noticed to be ill on 6th December 1892. The
hæmatozoon was discovered in the blood on the same date. The fever which
attained a maximum of 41.3°C. was of the continued type, with marked daily re-
missions and intermissions at irregular intervals. The urine from the first
contained a large quantity of albumen and continued to do so until death ; at a
later period casts appeared together with leucocytes. This animal was subjected
to a treatment consisting of Arsenic in solution from the "first, which quickly
produced an effect on the hæmatozoon which was absent for thirteen clays out of
the seventeen, during which the animal survived.
Autopsy.—Body emaciated, some swelling and oedema of the extremities,
sheath and under-surface of the abdomen. The visible mucous membranes
presented an amber colour, and on section the tissues of the body were stained
an orange colour. Thorax.—The pleural cavities each contained a considerable
quantity of fluid, but there were no pleuritic adhesions. Lungs.— Both were the
seat of sub-pleural ecchymoses, together with emphysema at the apices and free
borders. No consolidation.
Pericardium.—The sac contained two ounces of fluid. Heart considerably
enlarged. The base was the seat of gelatinous exudation, dotted over with a few
sub-pericardial ecchymoses, but the muscular structure was free from them. On
section.—The right auricle was free from, but the right ventricle presented a few
dark-coloured sub-endocardial extravasations which were surrounded by a zone
of a lighter colour. Left auricle healthy. Left ventricle, walls hypertrophied.
The upper half of the cavity presented extensive, dark-coloured, sub-endocardial
extravasations, which were particularly well marked behind the ' chordae tendineæ '
and on the upper portion of both musculi papillares.
Abdominal cavity was free from- fluid. Liver enlarged, old signs of peri
hepatitis. On section tissues appeared normal.
Spleen normal in size, few sub-capsular petechiæ. Kidneys, both organs tinged
yellow ; very numerous, minute sub-capsular petechiæ covered the whole external
cortical surfaces, but on section they did not appear to involve the deeper