esulting from the foreign body pervading the
lungs, had advanced so far as to produce a variety of small cysts, and
circumscribed, indurated masses, the former containing _fluid_, and the
latter _solid_ carbon, and it is evident in tracing its progress, that
there must have been a very rapid increase within the system in the
carbon originally deposited in the pulmonary structure by inhalation.
There was very limited black expectoration shortly before death, and
this merely the contents of a few small cavities communicating with the
bronchial ramifications, while both lungs were extensively infiltrated
with that matter which, had the patient lived, would have produced
general softening, and more extensive excavations by the coalition of
the various indurated tubulae.

* * * * *

CASE IV. J. T., aged 45 when he died, May 1837. He became a collier in
early life, in the neighbourhood of Glasgow, and came, at the age of 22
years, to East Lothian, to engage in collier labour at Blind Wells, near
Tranent. From his own account, he was rather of a delicate constitution,
and ill-fitted for the work of a coal-pit, consequently, after labouring
a few years, he was, at the age of 26,--owing to cough and difficulty of
breathing,--obliged to relinquish the employment of a miner. He left
East Lothian, and retired to the west of Scotland, where he became a
country merchant, and continued so occupied for upwards of fifteen
years. During that time, he was occasionally troubled, particularly in
the morning, with his cough and hurried breathing, which was increasing
in severity, but at no period had he expectorated black matter, nor was
there any indication that his sufferings arose from carbonaceous
disease. On account of becoming reduced in circumstances, he was under
the necessity, though labouring under chest affection, of returning to
his former employment of coal-mining at Blind Wells, at the age of 41,
August 1834. He had not been long engaged as a miner, after his return
to East Lothian, when his cough increased considerably, with laborious
breathing, palpitations, and overpowering headach. Both now and
formerly, he wrought solely as a coal-miner, and at no time of his life
did he work as a _stone-miner_. Having a family to provide for, he
struggled on laboriously under much suffering from his chest affection,
till general exhaustion compelled him to leave off work, and seek
regular medical advice, Ju