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 163
n meridiefuerit,nulla extremitatum umbram profjcit, fcd libere radrj in cauaturam incidunt, donec fol fenfim ad occidentem defies (ftere cccperit, tunc totum cauaturae occidentale latus umbra obfcuratur ab ipfa extremitate ufque ad lineam horaeprimaeautfecundx. Porro inpuncfio horae fextae ante 3c… … Sequitur alia figura. N 3 Formae
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.
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