Fabrica et vsvs : instrvmenti ad horologiorvm descriptionem peropportvni : accessit ratio describendarvm horarum a meridie & media nocte exquisitissima, & nunquam ante hac in lucem edita (1586)
Clavius, Christoph, 1538-1612 · Romae : Apud Bartholomaeum Grassium · leaf 48
49. , 0 ^0 L 0 G I 0' IiF M pri* nibus retiis B H , G F, (pofito pundo G , in H, eo in B F, quae * aequa* a mi . hs tunceft redx B Ij … fundamento, CUI tunc reda A G , congruit, ^ Yt didum*eft, nufqiia bit, &c. , * ^ ITA QV E fi in prima figura intercapedo B H , circino transferatur in fundamento, quod hic repetiuimus, ex A, vfque ad E,erit duda reda A E,com munis fedio plani propbfiti, & circuli horae d.fea plani…
Sundials
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
![An illustration from Nicolai Copernici Torinensis De reuolutionibus orbium coelestium, libri VI : Habes in hoc opere iam recens nato, & aedito, studiose lector, motus stellarum, tam fixarum, quàm erraticarum, cum ex ueteribus, tum etiam ex recentibus obseruationibus restitutos: & nouis insuper ac admirabilibus hypothesibus ornatos. Habes etiam tabulas expeditissimas, ex quibus eosdem ad quoduis tempus quàm facillime caculare poteris. Igitur eme, lege, fruere. [Line in Greek] (1543)](https://img.insideoutlibrary.com/img/200/ia-nicolaicopernici00cope-273-178.webp)
![An illustration from L'optique divisée en trois livres : ou, l'On démontre d'une maniere aisée tout ce qui regarde 1. la propagation & les proprietez de la lumiere. 2. La vision. 3. La figure & la disposition des verres qui servent à la perfefectionner [sic] (1682)](https://img.insideoutlibrary.com/img/200/ia-loptiquedivise00ango-79-9.webp)
