LXXVIII.

Dials. Horologia.

[Illustration]

A _Dial_ measureth Hours. _Horologium_ dimetitur Horas.

A _Sun-dial_, 1. sheweth by the shadow of the _Pin_, 2. what a _Clock_ it is; either on a Wall, or a _Compass_, 3, _Solarium_, 1. ostendit umbrâ _Gnomonis_, 2. quota sit _Hora_; sive in Pariete, sive in _Pyxide Magnetica_, 3.

An _Hour-glass_, 4. sheweth the four parts of an hour by the running of _Sand_, heretofore of water. _Clepsydra_, 4. ostendit partes horæ quatuor, fluxu _Arenæ_, olim aquæ.

A _Clock_, 5. numbereth also the Hours of the Night, _Automaton_, 5. numerat etiam Nocturnas Horas, by the turning of the Wheels, the greatest whereof is drawn by a _Weight_, 6. and draweth the rest. circulatione Rotarum, quarum maxima trahitur à _Pondere_, 6. & trahit cæteras.

Then either the _Bell_, 7. by its sound, being struck on by the _Hammer_, or the _Hand_, 8. without, by its motion about sheweth the hour. Tum vel _Campana_, 7. sonitu suo, percussâ a _Malleolo_, vel _Index_ extra Circuitione sua indicat horam.