of blood in the lungs, and _— in thofe who 
occur. 
Such being the condition of the body, it will appear, that 
a {pitting of blood may be occafioned from the mere circum- 
e are predifpofed to it, hemoptyfis is readily 
t various exciting caufes. ‘Thus expofure to 
great external heat, as in manufacturers employed in fur- 
naces, glafs-houfes, &c.; all violent trainings of the mu 
cles, fuch as attempts to lift or carry burdens of great 
tight ; blowing violently, as in playing on trumpets, or 
ther wind inftruments ; great exertions, by which the circu- 
lation is hurried, as in wreitling, running, jumping, afcending 
declivities, and the like; in which the extreme congeltion of 
in the veffels of the lungs is evinced by the fhort 
and laborious breathing, the fenfe of fuffocation or of ftuff- 
ing in the breaft, and the violent efforts of the heart to over- 
‘come the refiftance. ‘T’o the laborious exertion in climbin: 
i her than to the rarity of = air, 
are pre- 
ve drinking of intoxicatin 
liquors ; violent emotions of the mind, eff y anger; an 
» all great and fudden agitations of the cheit, as by 
: utin e like. 
It is to be obferved, however, that this predifpofition 
and dif} ion in the 
of the lungs, are frequently conjoined with actual 
i nee of heer 
Phthifical temperament, the formation of tubercles had gon 
a to a confiderable extent in the lungs, before the bleeding 
il taken place. Thefe little bodies, which are generally 
ries as of a ferofulous nature, contribute to diminifh 
already too contracted capacity of the cheft, and to im- 
+ the free circulation; they are alfo liable to inflame 
pee expofure to cold; and their ordinary is toa 
a. bad fuppuration, forming ulcers of various extent. 
the rupture of the minute veffels is greatly —-* 
en ce of the ha . 
* the “ ablence of any external force,” together with 
‘the “ previous exiftence ef an irritating cough, and. pain in 
Vou. XVII. 
HEMOPTYSIS. 
the fide,’’ refult from the atual previous diveafe of the 
lungs; and the greater danger of this fpecies of hamop- 
tyfis neceflarily follows from the tendency of this previous 
difeafe to go on to a bad fuppuration, that is, to pulmonary 
confumption. 
This view of the fubject likewife ferves to explain why 
as the previous 
malformation or phthifical habit, the veflels may Bg as in 
f 8, & 
And fuch, in fact, 
its unceafing expofure to the air inhaled in refpiration, and 
the extreme delicacy and flight fupport of the minute veffels 
in the lungs, render the Neekng of thofe veflels more diffi- 
cult than in other parts of the body; fo that, where there is 
derable vigour of conftitution, or where t 
t 
commonly comes on with a fenfe of weight and anxiety in 
P 
hawking is made, which brings up a little blood, of a florid 
‘The irritation returns ; and 
at 
gaat quantity, and frequently continues to ‘or 
eral days together. It is fometimes profufe, but rarely 
in fuch quantity as, either by its excefs, or by its fudden 
fuffocation, to prove immedi 
+ ceafes {pontaneoufl 
either ceaf ly, or is ftopped by the 
Oe ees elisky; te 
With re to » it is very neceflary, as we 
have already remarked, to diftinguifh the different parts 
from which # out ; 
When blood {pit out proceeds from fome part of the in- 
ternal furface of the mouth itfelf, it comes out without an 
hawking or coughing ; and generally, upon infpection, the 
icular fource of it becomes evident. When it proceeds 
the throat or adjoining cavities of the nofe, it may be 
brought out by hawking, and fometimes by coughing ie 
its 
fauces is more rare than one from the lungs; t the 
i ore 
