on_ of the subdued aguish matter: Finds difficulty
in giving a satisfactory accompt of the _return of Fits_: distinguishes
Agues into _Vernal_ and _Autumnal_: Takes notice, that as there are few
_Continued_ Feavers, so generally there are only _Quotidians_ and
_Tertians_, in the _Spring_; and only _Tertians_ and _Quartans_ in
_Autumn_; Of which having offered Reasons, that seem considerable, he
proceeds to his Method of curing them; and, laying much weight upon the
said difference, he prescribes and urges different ways to be used in that
cure: Interserting among other things these notes; _First_, that the Period
of Fermentation in Feavers, both _Continued_ and _Intermittent_, is (if
left to Natures own conduct, and well regulated, if need be, by Art)
perform'd in about 336. hours or 14 dayes, subducting in _Intermittent_
ones, the hours of intermission, and counting 51/2 hours for every Paroxism;
and imputing the excursion beyond that time to the disturbance given to
nature by the error of Practitioners. _Secondly_, that whoever hath had a
_Quartan_ formerly, though many years be pass'd, shall, if he chance to
have another, be _soon_ freed from it; and that a Physician knowing _that_,
may confidently predict _this_. {213}

In the _Fourth Section_, the Author, in conformity to the Custom of those
that write of Feavers, discourses of the _Small-pox_; and _First_,
examining the cause of this sickness and its universality, delivers his
peculiar opinion of the bloud's endeavouring a Renovation or a New Texture
(once at least in a Mans life) and is inclin'd to preferr the same to the
received doctrine of its malignity. _Then_, having laid down, for a
foundation of the Cure, the two times, of _Separation_ and _Expulsion_, he
argues as well against too high an Ebullition or too hasty a separation (by
a hot diet or high Cordials) as against too languid a one (by Blooding,
Purges, and Cooling medicines.) The like he does to the Time of
_Expulsion_, forbidding _both_ immoderate Heat (whereby Nature's expelling
operation is disturbed by a precipitated and too thick a crowd of the
protruded pustuls,) _and_ too much Cooling, whereby due Expulsion is
hindred. In short, he advises, to permit Nature to do her own work,
requiring nothing of the Physician, but to regulate her, when she is
exorbitant, and to fortifie her, when she is too weak. He concludes all,
with delivering a Model of the Method, he would use for his own only Son,
if he