r 533 ] 
fcptic Virtue it chiefly operated. From this Princi- 
ple we might account for its Succcfs in Gan grcncs, 
and in the low State of malignant Fevers, when the 
Humours are fo evidently putrid. And for Inter- 
mi rtents, in which the Bark is mod: fpccific, were 
we to judge of their Nature, from Circumflances at- 
tending them in Climates and Seaforis moll liable to 
the Diftemper, we fhould aflign Putrcfa&ion as a 
principal Caufe. They are the great Endemic of all 
marfhy Countries, and rage mod after hot Summers, 
with a dole and mo;d State of Air. They begin at 
the End of Summer, and continue thro’ Autumn; 
being at the word, when the Atmofphere is mod 
loaded with the Effluvia of ftjgnating Water, ren- 
der’d more putrid by Vegetables and animal Sub- 
dances that rot in it. At fuch times all Meats are 
quickly tainted; and Dyfenteries, with other putrid 
Didcmpers, coincide with thefe Fevers. The Heats 
difpole the Humours to Acrimony ; the putrid Ef- 
fluvia are a Ferment ; and the Fogs and Dews, fo 
common to thofe Climates, dop Perfpiration, and 
bring on a Fever. The more thefe Caufes prevail, 
the ealier it is to trace this Putrefaction of Humours. 
The NauJ'ea , Third, bitter Tade of the Mouth, 
and frequent Evacuations of putrid Bile, are com- 
mon Symptoms and Arguments for what is advanced. 
We fhall add, that in moid Counrries, in bad Sea- 
fons, the Intermittents not only begin with Sym- 
ptoms of a putrid Fever, but, if unduly managed, 
caflly change into a putrid and malignant Form, 
with livid Spots and Blotches, and Mortification of 
the Bowels. Bur, as a thorough Difcuffion of this 
Quedion might carry us too far from our prefent 
Y y y 2 Subject, 
