irmacion of this is, that the laborouse and thinne dieted
people, either had it not, because they dyd eate but litle to
make the matter: or with no greate grefe and danger, because
they laboured out moche thereof. Wherefore vpon small cause,
necessarily must folowe a smal effecte. All these reasones go to
this ende, that persones of all contries of moderate and good
diete, escape thys Englishe _Ephemera_, and those be onely vexed
therewith, whiche be of immoderate and euill diete. But why? for
the euill humores and corrupte aier alone? No, for then the
pestilence and not the swet should rise. For what then? For y^e
impure spirites corrupte in theim selues and by the infectiue
aier. Why so? for that of impure and corrupte humores, whether
thei be blode or others, can rise none other then impure
spirites. (20) For euery thynge is suche as that whereof it
commeth. Now, that of the beste and fineste of the blode, yea in
corrupte bodies (whyche beste is nought) these spirites be
ingendred and fedde, I before expressed. Therfor who wyl haue
them pure and cleane, and him selfe free from sweat, muste kepe
a pure and cleane diete, and then he shalbe sure.

[_The preseruacion_] Infection by the aier, and impure spirites
by repletion thus founde and declared to be the causes of this
pestilente sweate or Englishe _ephemera_, lette vs nowe see howe
we maye preserue our selues from it, and howe it may be
remedied, if it chaunce, wythe lesse mortalitie. I wyll begynne
wyth preseruation. That most of all dothe stande in auoidyng the
causes to come of the disease, the thinges helping forward the
same, and remouyng that whiche is alredy had & gotten. Al be
done by the good order of thynges perteynyng to the state of the
body. Therfore I will begin with diete wher I lefte, & then go
furth with aier where I beganne in treatyng the causes, and
declare the waie to auoide infection, and so furthe to the reste
in order. Who that lustethe to lyue in quiete suretie, out of
the sodaine danger of this Englishe _ephemera_, he aboue all
thynges, of litle and good muste eate & spare not, the laste
parte wherof wyl please well (I doubt not) vs Englishe men: the
firste I thinke neuer a deale. Yet it must please theim that
entende to lyue without the reche of this disease. So doyng,
they shall easely escape it. For of that is good, can be
engendred no euill: of that is litle, can be gathered no great
store. Therfore helthful must he nedes be and free