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Clavius, Christoph. **E5010.54 Opera mathematica V tomis distributa.
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Moguntiz. Sumptibus Antonij Hierat excudebat Reinhard Eltz. M.DC.XI, M.DC.XII. 5 v. Diagrams. Tables. Engraved title- page. F°.
Contents. —1. In Euclidem [et] in Theodosium commentarii. — De sinibus ac lineis tangentibus & secantibus. — Triangula rectilinca sphrerica. 2, Geometria. — Arithmetica. — Algebra. 3. Commentarius in sphzrare Ioannis de Sacro Bosco. — Astrolabium. 4. Gnomonices libri octo. — Fabrica et usus instrumenti horologiorum. — Horclogiorum nova descrip- tio. §. Romani calendarii 4 Gregorio XIII. restituti explicatio. — Novi calendarii Romani apologia adversus Michaelem Meestilitinm. — Appendix in qua J. Scaliger, G. Germanus, & F. Vieta confutantur. — Refutatio Cy-
clometrie Scaligeri - h_/
G2579 — Mathema'ics. Collected works. July 10, 1907