_, and _Centimanus_. _Zonaras_ maketh mention of one _Proclus_,
who so well had perceiued _Archimedes_ Arte of _Menadrie_, and had so
well inuented of his owne, that with his Burning Glasses,

[Burning Glasses.]

being placed vpon the walles of Bysance, he multiplied so the heate of
the Sunne, and directed the beames of the same against his enemies Nauie
with such force, and so sodeinly (like lightening) that he burned and
destroyed both man and ship. And _Dion_specifieth of _Priscus_,
a _Geometricien_ in Bysance, who inuented and vsed sondry Engins, of
Force multiplied: Which was cause, that the _Emperour Seuerus_ pardoned
him, his life, after he had wonne Bysance: Bycause he honored the Arte,
wytt, and rare industrie of _Priscus_. But nothing inferior to the
inuention of these engines of Force, was the inuention of Gunnes.

[Gunnes.]

Which, from an English man, had the occasion and order of first
inuenting: though in an other land, and by other men, it was first
executed. And they that should see the record, where the occasion and
order generall, of Gunning, is first discoursed of, would thinke: that,
"small thinges, slight, and common: comming to wise mens consideration,
and industrious mens handling, may grow to be of force incredible."

+%Hypogeiodie%, is an Arte Mathematicall, demonstratyng, how, vnder the
Sphaericall Superficies of the earth, at any depth, to any perpendicular
line assigned (whose distance from the perpendicular of the entrance:
and the Azimuth, likewise, in respect of the said entrance, is knowen)
certaine way may be praescribed and gone: And how, any way aboue the
Superficies of the earth designed, may vnder earth, at any depth
limited, be kept: goyng alwayes, perpendicularly, vnder the way, on
earth designed: And, contrarywise, Any way, (straight or croked,) vnder
the earth, beyng giuen: vppon the vtface, or Superficies of the earth,
to Lyne out the same: So, as, from the Centre of the earth,
perpendiculars drawen to the Sphaericall Superficies of the earth, shall
precisely fall in the Correspondent pointes of those two wayes. This,
with all other Cases and circumstances herein, and appertenances, this
Arte demonstrateth.+ This Arte, is very ample in varietie of
Conclusions: and very profitable sundry wayes to the Common Wealth. The
occasion of my Inuenting this Arte, was at the request of two Gentlemen,
who had a certaine worke (of gaine) vnder ground: and their groundes did
i