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)
. . tlBER TERTI VS. IXXill 'diuifimuSiOftincs alp circuli quotquot afliimuntur diuidi pofltmt.fi dedi- natio eorum Borea numeretur a D uerfus C , e fine numeri ducendo ipfi A C aequabilem,* AufWuerfus B , ac fpacio inter numeri terminum QC B comprathenfo in arcu F B numerato a' B extrorfum,ac e… … lata priori normalij Harc rurfus in duo primum,inde per e feclionis fignti dudam circularem in uiginti qua tuor aequalia diuifam , ac per figna eius ipfi A B a?qu!diuante$,paruta,ac fimul etiam lpfo arcu , habebimus horai rias propofiti declinationis circuli.Petrus Apianus ex hac deferiptione ne…
Sundials -- Early works to 1800
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
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