Rvdimenta mathematica : haec in duos digeruntur libros, quorum prior geometriae tradit principia seu prima elementa, unà cum rerum & uariarum figurarũ dimensionibus : posterior uerò omnigenum horologiorum docet delineationes (1551)
Münster, Sebastian, 1489-1552 · Basileae : In Officina Henrichi Petri · leaf 75
Liber primus. … Quod fi linea uifualis cadat in umbram uerfam, puta in ocfiauum aut nonum eius umbraspundlum , erunt coraufcus &bafis tanto longiores per* pendiculari &eius oppofitolatere, quanto linea 12. pun<florum excedit linea 8«uel^. punefiorum, in fefquialtera fcilicetaut fefquitertia&c. proportio;* neddquod…
Geometry -- Early works to 1800 · Horology -- Early works to 1800 · Sundials -- Early works to 1800
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
![An illustration from Horoscopion Apiani generale dignoscendis horis cuiuscumque generis aptissimum ... nunc ab illo primum [et] inuentum [et] æditum . (1533)](https://img.insideoutlibrary.com/img/200/ia-horoscopionapian00apia-35-0.webp)
