[Mathematics & astronomy] Sturm, 2 works in one volume

Leather, folio, title on spine. First title with woodcut vignette: Mathesis compendaria sive tyrocinia mathematica tabulis (...) nunc quinta vice correctior edita. Johann Christoph Sturm. Leipzig & Coburg, Paul Günther Pfotenhauer (printed by) G.B. Goebelius, Schleusingen, 1707. 69 pp. with 19 illus. leaves in full-page copper engraving and 2 images in the text, sl. tanned, title page with stronger tanning. Bound together with: 2nd title with woodcut vignette: Scientia Cosmica sive Astronomia tam Theorica quam Spherica paucis tabulis. Johan Christoph Sturm. Nuremberg, (printed by) Johann Ernest Adelbulner (for) Wolfgang Maurits Endter, 1708. (2),32 pp., 2 leaves with 22 resp. 34 full-page copper-engraved illus. Complete but misbound (quire D). This part with several ann. in contemp. ms., various sm. stains. 2 works in one vol.