La operazione del compasso geometrico, et militare (1640)
Galilei, Galileo, 1564-1642 · Padova, P. Frambotto · leaf 81
adivn fiume venendo fopra la ripa, ò altro luogo eminente ,ficomeinell'effem pio fivede, nel qual volendo noi mifuraf la larghezza CB. venendo nel pun- to A. traguarderemo conla cofta AF. l'eftremità B. no- , tandoipunti DE. tagliati del perpendicolo , quali fiano verbi gratia 5.8 quante volte…
Compasses (Mathematical instruments) · Measuring instruments · Geometry -- Early works to 1800
Internet Archive · Fisher - University of Toronto · Public domain (published before 1931). Free to use for anything.
![An illustration from Directorivm generale vranometricvm : in quo trigonometriae logarithmicae fvndamenta, ac regulae demonstrantur, astronomicaeq[ue] supputationes ad solam ferè vulgarem additionem reducuntur : opus vtilissimum astronomis, geometris, arithmeticis, perspectiuis, architectis, praecipuè militaribus, mechanicis, geographis, nec non ipsis philosophis naturalibus (1632)](https://img.insideoutlibrary.com/img/200/ia-directorivmgener00cava-134-0.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-b30327751-311-0.webp)
