DISE 
refpeGtive organ in hea Ith, or from the fcience of la 
d upon the kno 
logy; which latter is, of courte, founde on we 
ledge of anatomy. For it muft be obvious, that, if the 
function of Suet is rales or fufpended, the ftomach, 
ed, the wee whiz h is the common. centre oF es 
ceffarily to be confidered as the immediate feat 
But thefe conclufions, pines frequently re- 
ence. For fo 
ar “organ y are ae d: aera when no effential 
dilate exiits in it 3 but when the original difeafe is in a dif- 
Thus, the ftomach } 18 violently difordered, fick. 
giddinefs, &c. when the ftomach is deranged. In cftimating 
the fymptoms of difeafe, therefore, all thefe confiderati ions 
muft be taken into the account. 
in the human economy, 
peer fenfations, and ee changes in the appearance, 
or other qualities of the b For every difeafe confifts 
principally ia the pean - fome fun@ion: but no 
funét:on can be much impeded or deranged, without occafion-~ 
ing fome ain or are aefs, by whi the patient is informed 
one labour under a dif- 
fever, inflammation, 
ion muft be obferved in all its lefions; whether it be 
defestve, as occurs in difeafes in general, which is 
or preternaturally i in- 
creafed, as fometimes happens under particular morbi 
i r laftly, irregular, as in convulfions, 
cramp, s other Giailar Ciferders 
The ftate of the fick in regard to fleep ought alfo to be 
attended to; for, whether we confider it asa fun@tion of the 
body, or as ; the fufpenfion of other fur@ions, it follows its 
natural laws, ina flate of health, and thefe are ufually inter- 
rupted in the generality of difeafes ; fo that fleep either al- 
together forfakes the aan or it is too intenfe, as in a 
ate coma, or interrupted at fhort intervals, or accom- 
panied with inceffant and frightful dreams; and it is often 
altogether unrefrefhin 
The confideration of the figns of dafeafe in the vital func. 
tions car ftill more importance, not only becaufe we hence 
learn more ally the nature of the difeafe, and the condition 
g. 
ASE. 
of the patient; but becaufe veh are-in saga ee 
when they are fevere. Of this fort are all the varieties of 
the pulfe; the feebie, {mall, ane ames eee or inter- 
an irregular and imperfect a€tion heart; thefe are 
efpecially obfervable in fevers, inflammations, nd faintings. 
The ae of the funtion of refpiration are the next 
in importance. The unofual quicknefs or tardinefs of the 
beige ora difficulty, or noife in inf{piration, as in afthma, 
the ttertor of apoplexv, or in croup; coughing, {neezing, 
fighing, or other modifications of breathing, are all indica- 
tions of difeafe, which mult not be eit cede d to 
thefe the various affections of the voice mutt be 
Farther, the fymptoms of lefion in the nee Teas 
muft be feduloufly obferved. The hunger or thirft, the de- 
u or too much relaxed, whether flatulent, or in pain; 
the condition of i {tools, and of the other fecret‘ons and 
excretions, which e more particularly under t' e cogni- 
zance of our fal, as the perfpiraticn and urine; the excefs, 
defe@, difficulty, or depravation of thefe refpeAively ;—in a 
word, all the fle age aur of this nature muft be invefti- 
ate re) the fun¢tions peculiar to each fex, more 
particularly fiat of the female, to ie overlooke 
e fecond cai of morbid fymptoms, 
As “uneafy 0 
painful ae oan they are the mo oft fre equent concomitants 
and figns of all difeafes ; difeafes are free at leaft from 
waeanees ras there isa degree of pleafurable feeling 
gnawing ng, throbbing, bindiee pain, and fo 
forth 3 eg tingling, a fenfe of laffitude, of 
f 
num or, of heat, of cold, of weight, naufea, 
iddinefs, faintnefs, ringin ears, and a multitude o 
uneafy feelings, indicate the varietics of difeafe. Some- 
times the feverity of thefe feelings conftitutes the principal 
of the difeafe ; and they agitate and diftrefs or terrify” 
the ies fo much, that they become more terrible than 
even the rehenfion of death; indeed, in many cafes, 
thefe oat fenfations are by no means deftitute of danger, 
from whatever caufe they originate, as ad may wear out 
the iaglet of life by their inceffant irritatio 
he third head of figns of difeafe coupale all a 
manifeft morbid changes, which do not come under the 
ceding, and which we learn from our own obfervation, ond 
not from the words or complainings of the fick. Thefe 
are the morbid colour of the body, efpecially of the coun- 
tenance, whether it be unufually pale, red, yellow, dufky, 
livid, or variable ; the peculiar afpe& or expreffion of coun- 
tenance, dependent on the actions of the mufcles of the face, 
n the circulation of the blood, and often on the ftate 
of the mind ; an afpcé or expreffion not eafy to be defcrib- 
ed, but which affords a better index of the condition of the 
vires vite, and of the increafe or diminution of difeafe, than 
In particular, the flate of the 
rednefs, brilliancy, wildnefs, or diftortion, and o more 
bid appearances of the eyes, as the coligenet inequality 
° 
