ains its colour after being submitted for some
days to the action of nitric acid.

[9] This is the only case in which I at any time observed colliquative
sweats as a symptom of this disease.

[10] To convey an impression of the nature of the labour in which the
man was engaged I shall simply extract a few remarks from the evidence
of the miners at this coal-work, taken by Mr Franks for the Government's
Commissioners, Note 105. "At all times the air is foul, and the lamps
never burn bright. The seam of coal is 24 inches, and the road only
three feet high." Note 108--"Experienced colliers do not like the work,
and many are touched in the breath." And in such a situation man is
doomed to labour! Note 114--"Most of the men here are _fashed_ with
_that trouble_; Foster, Miller, Blyth, and Aitken are all clean gone in
the breath together. Colliers here drop down very soon."

[11] It is evident in this disease that the bronchial ramifications are
destroyed, while the arteries, with the exception of the minute twigs,
are preserved.

[12] One of the lungs (the left one) now described, I sent to Dr John
Thomson, late Professor of Pathology, and will probably be found in his
collection, which I understand is in the College of Surgeons.

[13] After a free expectoration of black matter, there was an evident
mitigation of all the pectoral symptoms, and as the carbon again
accumulated in the lungs, the sufferings of the patient were very
considerably increased.

[14] This sputum was subjected to the action of nitric acid, which
produced no effect upon its colour.

[15] When pulmonary disorganization has proceeded far, from the presence
of carbon, there is a languor in the vital action from defective
oxygenation of the blood, which produces a gradual reduction in the
temperature of the body, requiring double clothing, and even that
addition is, with the aid of stimulants, not sufficient to keep the
patient warm.

[16] This lung is in the possession of Sir James Clark, of London.

[17] The above substances were submitted separately to the action of
nitric acid and caustic potash, and the result was that a large
proportion of carbon was precipitated.

[18] Since writing the above the patient has died; and I regret that,
owing to neglect in communicating with me, I have been prevented
examining the morbid appearances.

[19] Several of the Pencaitland colliers are at present engaged in the
tunnelling operations near to Edinbu