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 51
Liber primus. ,, biindioauit,nifi quod bafim hic torfimus in angulum redum.diuifimusque in bis duodecim fcilicet inumbram reclam 8c umbram uerfam.Vmbramre* … re tamen ueterumpoft coaequatam catheto bafim, lineam illam umbram Ion* giftime excurrentem recuruamus in medio quadrantis, nempe in 45. gradu ad anguhjmreftum>numerumcp duodenarium iuftoordineinbafi progredi entem, poft 45. quadrantis gradum contrario ordineferibimus, duodecim citraultraqrin…
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 Introductio geographica Petri Apiani in doctissimas Verneri annotationes, co[n]tinens plenum intellectum [et] iudicium omnis operationis, quæ per sinus [et] chordas in géographia confici potest, adiuncto radio astronomico cum quadrante nouo meteoroscopii loco longe vitilissimo. : Huic accedit translatio noua primi libri Géographiæ Cl. Ptolemæi . (1533)](https://img.insideoutlibrary.com/img/200/ia-introductiogeogr00apia-171-0.webp)
