NOSOLOGY. 
eholera and pyrofis are fo arranged; and itill lefs obvious, 
ow diarrhoea = swabs are to be deemed difeafes of a 
{pafmodic chara& 
The four 
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ww 
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As 
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poate 
Lm 
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me 
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The third clafs, cached difeafes, in which s¢the habit of 
body, = totally, or in great part, is depraved, without 
fever or nervous difeafe,” is divided into three 
by emaciation, enlargement, and a 
morbid condition of the fkin 
order, Marcores,’ ” comprifes only two genera, 
tabes and atrophia, both which are popularly termed con- 
fumption, or meee but the hia is accompanied by hec- 
tic fever, and the a 
he fecond order of ec “difeates, ¢¢ Intumefcentiz,”? 
is chara@erifed bya aalperiee enlargement of the whole, 
or pag part of the body ; and of th 
e four kinds, a 
ima 
oD 
O- 
The /olid enlarge- 
d tumour is in fome of 
e third aac oF this clafs, «« Impe etigines,’ ”* includes 
fcrofula, fy philis, feacfourry, alephantiats, lepra, the yaws, 
a and jaundice. 
he fourth and ‘at clafs of Dr. Cullen’s fyftem of nofo- 
logy comprehends all thofe diforders which are confined to 
apart of the body, without Pia aad as conttitution at 
large,—the Morbi “ Locales ous genera com- 
prifed in this clafs are fubdivided ie ae cia. of which 
a brief account will be fufficient to explain the nature of the 
claffif fication, 
The frft order, “ Dyfetfthefi sil includes the inftances of 
“depravation or total lofs of fome fenfe, occafioned by a 
fault of the external organ ; fach as blindnefs 
es viz. canine oa an aaie pica, 
i ag lay noftalgia, a and 
aphrodifia. 
Cob 
: h as ‘are Pro oduced 
without fever, or any increafed impetus.’ _ The enera of 
varioms 
ope contains fice genera of tumours, occafioned by the 
removal of a part from its proper place; viz. hernia, pro- 
lapfus, and diflocations. And the /af order, * Dialyfes,”’ 
includes the diforders in which there is a manifeft folution of 
continuity, or broken furface ; namely, wounds, ulcers, 
herpes, tinea, itch, fraCtures, and caries of bones ;—a group 
which, it muft be admitted, has {carcely et naa circum- 
e efe 
decided a ieee as t ained any general appro- 
bation ; and the pur sia of ination are fulfilled with fuf- 
aro accurac by the 
g the bot issical fyftems which have ap 4 eta fince 
the irk cio of a Cullen’s, befides that o eae 
aan already mentioned, was one promulgate De 
d Macbride, in his 66 Methodical Side en to the 
and Practice of Phyfic.” He propofed to arrange 
difeate under four claffes, Lil local, fexual, and in- 
firft clafs. M. Pinel, about the year 1800, 
der the title of ‘* Nofographie Philofophique,”’ te firft three 
line of his fyftem. 
ver, more efpecially under the hea 
age the fabdivifi ons to an -extent, which 
tion does not appear to warrant ; an 
where he is unable to point out the er means of dif- 
tinétion. 
Dr. Darwin peace in 1796, a new claffification of 
difeafes, which, ever, was rather intended to illuftrate a 
t 
T dered 
rability, “fentbility, volition, an 
when deranged, the caufes of every difeafe ; and, aaa 
per che four ‘great claffes of difeafes, which he 
difeafes of irritation, of fenfation, of volition, and - aifo- 
ciation. In the diftribution of the genera and {pecies, how- 
ever, it was often neceffary to refort to the fancy, to deter. 
mine under which clafs certain morbid affections fhould be 
ry 
Although this claflification, therefore, 
nce of great i a nora as well as of 
much ee > aia and contains many practical 
hints of great value; yet as a fyftem o of arrangement, by 
which the praétitioner i is to be direéted to the difcrimination 
of difeafes, it is perhaps altogether ufelefs. 
Before we conclude this article, we may obferve, that it 
has been the fafhion, among many profeffional men, to decry 
the ftudy of nofology, and the method of teaching medicine 
upon a nofological plan. eae this can have arifen only from 
an 
