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at all times appointed, the precise vsuall denomination of time, may be knowen, for any place assigned.+ These wordes, are smoth and plaine easie Englishe, but the reach of their meaning, is farther, then you woulde lightly imagine. Some part of this Arte, was called in olde time, _Gnomonice_: and of late, _Horologiographia_: and in Englishe, may be termed, _Dialling_. Auncient is the vse, and more auncient, is the Inuention. The vse, doth well appeare to haue bene (at the least) aboue two thousand and three hundred yeare agoe: [4. Reg. 20.] in * King _Achaz_ Diall, then, by the Sunne, shewing the distinction of time. By Sunne, Mone, and Sterres, this Dialling may be performed, and the precise Time of day or night knowen. But the demonstratiue delineation of these Dialls, of all sortes, requireth good skill, both of _Astronomie_, and _Geometrie_ Elementall, Sphaericall, Phaenomenall, and Conikall. Then, to vse the groundes of the Arte, for any regular Superficies, in any place offred: and (in any possible apt position therof) theron, to describe (all maner of wayes) how, vsuall howers, may be (by the _Sunnes_ shadow) truely determined: will be found no sleight Painters worke. So to Paint, and prescribe the Sunnes Motion, to the breadth of a heare. In this Feate (in my youth) I Inuented a way, +How in any Horizontall, Murall, or Aequinoctiall Diall, &c. At all howers (the Sunne shining) the Signe and Degree ascendent, may be knowen.+ Which is a thing very necessary for the Rising of those fixed Sterres: whose Operation in the Ayre, is of great might, euidently. I speake no further, of the vse hereof. Bur forasmuch as, Mans affaires require knowledge of Times & Momentes, when, neither Sunne, Mone, or Sterre, can be sene: Therefore, by Industrie Mechanicall, was inuented, first, how, by Water, running orderly, the Time and howers might be knowen: whereof, the famous _Ctesibius_, was Inuentor: a man, of _Vitruuius_, to the Skie (iustly) extolled. Then, after that, by Sand running, were howers measured: Then, by _Trochilike_ with waight: And of late time, by _Trochilike_ with Spring: without waight. All these, by Sunne or Sterres direction (in certaine time) require ouersight and reformation, according to the heauenly Aequinoctiall Motion: besides the inaequalitie of their owne Operation. There remayneth (without parabolicall meaning herein) among the Philosophers, [A perpetuall Motion.] a more excellent, mo
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