arance. On removing the left lung, which was difficult, from the
strong adhesive bands, it seemed, from its weight and softness, to
contain a fluid; and on making a longitudinal section of both lobes, a
large quantity of thick, black matter, similar to black paint, gushed
from the opening, exposing an almost excavated interior of both lobes.
The carbonaceous matter contained was in quantity about an English pint,
and the lung, when emptied, became quite flaccid, and very light. The
air-cells of this lung were entirely destroyed, or nearly so, and one of
the divisions of the left bronchus opened abruptly into the cavity at
the upper part. Both lobes were so completely adherent to each other,
from inflammatory action, as to form a continuous sac, containing the
above fluid. On examining the internal structure of the cavity, the
parenchymatous substance which formed its walls presented a rugged and
irregular appearance, resembling a sponge hollowed out, and infiltrated
with black paint.

At different points, the large pulmonary blood-vessels crossed the
cavity in the form of cords, with portions of structure attached, and
though these fragments had a black appearance, they exhibited, to a
considerable extent, their original cellular structure when washed in
water. The process of carbonaceous ulceration had proceeded so far in
this lung, that at some points the pleura pulmonalis, which was much
thickened, was left the sole medium between the contents of the sac and
the cavity of the chest; while in other parts it was thick and spongy.
On examining more minutely with the magnifier, open-mouthed bronchial
twigs, and very small blood-vessels, were seen plugged up with solid and
fluid carbon, and, from the appearance of the morbid structure, it was
manifest, that the ulcerative process had effected a complete
disorganization of the _bronchial_ tubes of every calibre, while the
smaller _arterial_ vessels had alone suffered, leaving the larger ones
entire.[11] Along the margin of the inferior lobe, indurated
accumulations were felt through the pleura, and, on being laid open,
they were ascertained to be impacted lobules, which resisted the knife.
Previous to the division, both lungs weighed about six pounds.

On examining the right lung, which seemed much similar in weight to the
left, and on making a section throughout its three lobes, the morbid
appearances varied in each. The upper lobe was infiltrated with carbon
into the in