84 ^ Treatise ^ 
be recalled by the Evacuation. But a Relapfe is 
not only occafioned by purging, but very frequently 
by the lead Error in Point of Diet, by a flight 
Cold, or other trivial Caufes. Wherefore, by 
Way of Prevention in bad Fevers which have been 
cured by the Bark, it is advifeable to order a Re- 
petition of the fame twice or thrice, at the Dif- 
tance of eight or ten Days *, efpecially if the Win- 
ter be coming on, which Seafon, on Account of 
the uncertain Intemperies of the Air, is very much 
to be feared. And - this is a fure Way to pre- 
vent a Return in the moft ftubborn intermitting 
Fevers. 
In compound intermitting Fevers, as a double 
tertian, a triple quartan, or a quotidian, (whether 
there be a perfect Intermiflion or only a Remiflion 
of the febrile Effervefcence) after letting Blood, 
and purging either upwards or downwards, we 
muft begin with the Bark *, or if the Difeafe be 
very violent, we muft give it immediately after 
opening a Vein, without further Preparation ♦, and 
notwithstanding this, we may order Blood-letting 
to be repeated as olten as the Cafe requires. For 
the previous Ule of the Bark is fo far from ren- 
dering it improper to take away Blood, that the 
Patient bears the Lofs of it better, and fooner re- 
ceives Benefit from the Medicine. If an Evacuati- 
on by Stool be neceffary, and the Violence of the 
Fever will not allow a lufficient Time for it, a Ca- 
thartick may be given with the Bark, after a Vein 
has been opened. But here the Febrifuge ought 
to be repeated every third Hour both Day and 
Night till the Fever returns no more, the Patient 
taking his Food about an Hour after the Medicine. 
For eight Days following, fix Dofes muft be given 
a Day, one every third Hour *, afterwards for a 
Week, five a Day, one every fourth Hour *, for 
a Week 
