Of aire so much I haue spoken before, as apperteinethe to the declaration of enfection therby. Nowe I wyl aduise and counseill howe to kepe the same pure, for somoche as may be, or lesse enfected, and correcte the same corrupte. The first is done in takynge a way y^e causes of enfectiõ. The seconde, by doynge in all pointes the contrary thereto. Take awaye the causes we maye, in damnyng diches, auoidynge cariõs, lettyng in open aire, shunning suche euil mistes as before I spake of, not openynge or sturrynge euill brethynge places, landynge muddy and rottẽ groundes, burieng dede bodyes, kepyng canelles cleane, sinkes & easyng places sweat, remouynge dongehilles, boxe and euil sauouryng thynges, enhabitynge high & open places, close towarde the sowthe, shutte toward the winde, as reason wil & thexperience of _M. varro_ in the pestilẽce at _Corcyra_ confirmethe. Correcte in doyng the contrary we shall, in dryenge the moiste with fyres, either in houses or chambers, or on that side the cities, townes, & houses, that lieth toward the infection and wynde commyng together, chefely in mornynges & eueninges, either by burnyng the stubble in the felde, or windfallynges in the woodes, or other wise at pleasure. By which policie skilful _Acron_ deliuered Athenes in _Gretia_, and diuine _Hippocrates_ _abderã in Thratia_ frõ y^e pestilẽce, & preserued frõ the same other the cities in _Grece_, at diuerse times cõyng with the wynde frõ _æthiopia_, _illyria_ & _pæonia_, by putting to the fires wel smelling garlãdes, floures & odoures, as _Galene_ and _Soranus_ write. Of like pollicie for purgyng the aier were the bonfires made (as I suppose) frõ long time hetherto vsed in y^e middes of sommer, (24) and not onely for vigiles. In cõfortyng the spirites also, and by alterynge the aier with swete odoures of roses, swet perfumes of the same, rosemary leaues, baies, and white sanders cutte, afewe cloues steped in rose water and vinegre rosate, the infection shalbe lesse noious. With the same you maye also make you a swete house in castynge it abrode therin, if firste by auoidynge the russhes and duste, you make the house clene. Haue alwaies in your handcercher for your nose and mouth, bothe with in your house and without, either the perfume before saide, or vinegre rosate: and in your mouth a pece either of setwel, or of the rote of _enula campana_ wel steped before in vinegre rosate, a mace, or berie of Juniper. In wante of suche perfumes as is beforesaide, take of mirrhe & drie rose leues of eche a lyke quantite, with a little franke encense, for the like purpose, and caste it vpon the coles: or burne Juniper & their beries. And for so moche as clenelines is a great help to helthe, mine aduise is, that all your clothes be swete smellynge and clene, and that you wasshe your handes and face not in warme water, but with rose water and vinegre rosate colde, or elles with the faire water and vinegre wherein the pilles or barkes of orenges and pomegranates are