[ 27° ] 
feious of their being difeafed, whillf a 
Certain palenefs of the face, difordered 
look of the eyes, and other appearances 
difficult to defcribe, announced to the 
by-dander the terrible fate which awaited 
them. 
A difeafe does not always prefent itfelf 
Under the fame afpedt, blit is capable of 
alfuming a vaft variety of forms. This 
has been particularly obferved in periodi¬ 
cal fevers, and it is to Morton and Torti 
that the medical world is indebted for this 
important truth. 
If the miafmata which catife peri¬ 
odical fever* can alfo produce the cha¬ 
racters of continued fever, of pleurifyy 
peripneumony, confumption, apoplexy, 
hemicrania, vomiting, cholera, colic, 
diarrhoea, general or partial fpafms, con¬ 
tusions, of pains like thofe of labour, 
of rheumatifm, &c. it is fufficiently evi¬ 
dent that the mode of adtion of the miaf¬ 
mata 
