Gnomonice Andreae Schoneri Noribergensis, hoc est, De descriptionibvs horologiorvm sciotericorvm omnis generis, proiectionibus circulorum sphaericorum ad superficies, cum planas, tum conuexas concauasq[ue], sphaericas, cylindricas, ac conicas, item delineationibus quadrantum, annulorum, &c. libri tres (1562)
UBER SECYNDVS. 1XVIII At non «qualiter axis mundanus.utin priore figura, conum, fed in- srciuaiitcr difpefca t.aut detur in ciufdem fupcrficie , uel extra conuexum. Et fit,exempli caufTa.conus A G D* axis ciufdem A B , in cuius fup erhcic
Sundials -- Early works to 1800
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
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