To the extent possible under law, the Text Creation Partnership has waived all copyright and related or neighboring rights to this keyboarded and encoded edition of the work described above, according to the terms of the CC0 1.0 Public Domain Dedication (http://creativecommons.org/publicdomain/zero/1.0/). This waiver does not extend to any page images or other supplementary files associated with this work, which may be protected by copyright or other license restrictions. Please go to http://www.textcreationpartnership.org/ for more information.
THynges not naturall be so called, bycause they be no por••yon of a naturall body, as they be, w••iche be callyd naturall thyn∣ges, but yet by the temperance of theym the body beynge in helthe, so consysteth by the dis••emp••tance of them, syckenesse is induced, & the body dessolued.
¶ The fyrste of thynges not naturall is ayre, whiche is proprely of it selfe, or of some mate∣riall
cause or occasion good or yll.
¶ That which is of it selfe good, hath pure va ••ours, and is o••oriferous.
¶ Also it is of it selfe, swyft in alteration from hotte to colde, wherin the body is not moch pro∣uoked to sweate for heate, ne to chylle for vehe∣mency of colde.
¶ Ayre among al thynges not natural is chief∣ly to be obserued, forasmoch as it doth both in∣close vs, & also enter into our bodyes, specially the most noble member, which is the hart, & we can not be separate one howre frome it, for the necessitie of breathyng and fetchyng of wynde,
¶ The causes wherby the ayre is corrupted be specyally foure.