Fabrica, et vso del compasso di proportione : doue insegna à gli artefici il modo di fare in esso le necessarie diuisioni, e con varij problemi vsuali mostra l'vtilità di questo stromento (1664)
Casati, Paolo, 1617-1707 · In Bologna : Presso Gio. Battista Ferroni · leaf 334
rius molis ejufdem fpeciei gravitatem in aére. Sit cogni- ra Ratio gravitatum fecundùm fpeciem ut 4 ad 5. Requi ratur in lance D pondus unc. 8 , ut infrà aquam deprima- tur folidum. Fiat ut differentia fpecificarum gravitatum 1, ad fpecificam gravitatem folidi 4, ita uncia 8, ad une. 32: Eft ergo… … & pariter folidum fubjetto humori innatans a ftylo deprimitur, & immergitur. ProPposi
Mathematical instruments
Internet Archive · Fisher - University of Toronto · Public domain (published before 1931). Free to use for anything.
![An illustration from Les mechaniqves de Galilée ... : avec plvsievrs additions rares, & nouuelles, vtiles aux architectes, ingenieurs, fonteniers, philosophes, & artisans / traduites de l'italien par L.P. M[arin] M[ersenne] (1634)](https://img.insideoutlibrary.com/img/200/ia-lesmechaniqvesde00gali-32-0.webp)
![An illustration from Les mechaniqves de Galilée ... : avec plvsievrs additions rares, & nouuelles, vtiles aux architectes, ingenieurs, fonteniers, philosophes, & artisans / traduites de l'italien par L.P. M[arin] M[ersenne] (1634)](https://img.insideoutlibrary.com/img/200/ia-lesmechaniqvesde00gali-80-0.webp)
![An illustration from Mathematicall magick. Or, the wonders that may be performed by mechanicall geometry in two books, concerning mechanical powers [and] motions : being one of the most easie, pleasant, useful, (and yet most neglected) part of mathematicks ... (1680)](https://img.insideoutlibrary.com/img/200/ia-b30327751-311-1.webp)
