Nova praxis construendi circinum proportionalem horographicum : eoque ritè confecto omnis generis horologia in planis regularibus et declinantibus expeditissimè et exactissimè delineandi, in proximi commodum typis proposita & figuris instructa (1695)
Saher, Susanna Christina, d. 1702 · Viennae Austriae : Apud Susannam Christinam, Matthaei Cosmerovij, Sac. Caes. Majest. typographi aulici viduam · leaf 16
ItaunamfaciemCirciniquoad lineam Horographicam facillimc* eonfedamhabes. PK.OBLEMA III. Circino Proportionali gradtu Elevationis P&/tf& JEquHtwii infcnbere, FlgUniTN quadrante Altronomico fig. 2. duc Iineam EF, paralellam linex A B, ejufdemj j Aprorfus longitudinis,& diftantije ab A… … . j_ot«. s 7-alterum, donec tangat punflum, ubi lineam E F fecat Iinea A. $ o. quam aperturamCircini transfer in Circino Proportionali ejufdem fig. $, ex centro d.ad lineas d e,d f, notatis utrinq; pun&is. Similiter pofito uno pede Circini in A,extende aIterum,donec invenias…
Sundials
Internet Archive · Getty Research Institute · Public Domain Mark 1.0. Free to use for anything.
![An illustration from Il terzo [-qvinto] libro ... (1551)](https://img.insideoutlibrary.com/img/200/ia-ilterzoqvintolib00serl-37-56.webp)