ed with
carbon into the interlobular cellular tissue. The air-cells were gorged
with tenacious mucus. The middle lobe was partially excavated. The
cellular tissue was considerably disorganized, and similar in diseased
structure to the upper lobe of the left lung, with the exception of a
portion affected by vascular emphysema. The inferior lobe was much
condensed, and loaded with carbon of a very bright black. The mucous
membrane of the bronchial tubes was thickened, and slightly ulcerated.
Various lymphatic glands were found at the root of both lungs,
containing black fluid. The pericardium was considerably distended from
effusion of a straw-coloured fluid. The internal surface of the
pericardium was rough, and both laminae appeared thickened from
inflammatory action. Effusion into cavity of chest to the extent of
twelve ounces. The heart was natural in appearance, but thin in
substance. The tricuspid and mitral valves were thickened, and
exhibiting minute granulations on their surface. The right auricle and
ventricle were dilated considerably. Aorta, and other vessels proceeding
from heart, were natural. The stomach was small, and exceedingly spongy
in its mucous lining. The intestines were healthy. The kidneys were
small, and peculiarly yellow in the internal structure. The liver was
large, and engorged with dark thick blood; several small carbonaceous
cysts throughout its substance. The spleen was large, soft, and much
congested. The mesenteric glands free from black matter.

_Head._--The arachnoid thickened and opaque; there was very general
congestion of pia mater with dark black blood, and when removed,
convolutions studded over with innumerable dark points. The surface of
the brain was apparently healthy, with an effusion of a light pink-like
fluid into the lateral ventricles. The internal substance of the brain
natural.

This case is interesting, as showing the very rapid course, in some
instances, of the disease to a fatal termination, and also how soon the
strongest man can be brought under its destructive influence. This is
the only case in which carbon was discovered in any of the other organs,
as exhibited in the liver. The above case comes under the third
division, showing extensive excavation of the pulmonary structure.

CASE VII. James R. aged 54 at his death, 1836. He was a large muscular
man, and wrought as a coal-miner in early life at Pencaitland, and, as
far as could be ascertained, he had never