8vo. 107, (1) pp. - (Bound with) II: Bischof, Johann Christoph. Betrachtungen des Weltgebäudes und einiger Merkwürdigkeiten der Natur. Danzig & Leipzig, Wedel, 1764. (40), 226, (12) pp. With 14 engraved plates. - (Bound with) III: Schmid, N[icolaus Ehrenreich Anton]. Von den Weltkörpern. Zur gemeinnützigen Kenntniss der großen Werke Gottes. Hannover, [Schlüter], 1766. (12), 172 pp. - (Bound with) IV: Huygens, Christian. Weltbeschauer oder vernünftige Muthmaßungen, daß die Planeten nicht weniger geschmükt und bewohnt seyn, als unsere Erde. Zürich, Orell, Geßner u. Comp., 1767. (8), 224 pp. (Bound with) V: Dommerich, Johann Christoph. Sphaerologia Oder Kurzer Unterricht Wie sowol Die Himmels als Erdkugel beschaffen, und recht zu gebrauchen [...]. Lemgo, Meyer, 1745. (16), 164, (12) pp. With 6 (instead of 8) folding engr. plates. With engr. title vignette and 4 engr. plates. Contemporary half calf with giltstamped title to spine. Splendid sammelband containing five rare 18th-c. "Cosmologica" (spine title). - I: Very rare first German edition of Maupertuis' "Essai de cosmologie" published the previous year. Not in OCLC or German auction records. - II: First edition of the only work published by Bischof, teacher at the Stettin Gymnasium; treats fixed stars, comets, will-o'-the-wisps, dew, storms, and rainbows. Very rare; only a single, faulty copy in auction records (R&A, 71, 2196; wanting frontispiece and 4 engravings). - III: First edition of Schmid's much-reprinted and translated principal work. Treats the earth, the planets, their orbits, size, and distance, the sun, light, gravitation, fixed stars, and comets. Schmid was among the first astronomers to attempt using the new science of electricity for sun physics. - IV: Second German edition. "In contrast to most other Huygensian writings, Cosmotheoros has had wide appeal and a broad readership and has been translated into several languages" (DSB). V: First edition of this standard work about constructing and using terrestrial and celestial globes, written by the 21-year-old scientist and philosopher. The plates depict globes, the world model according to Ptolemy and Tycho Brahe, etc. Wants two plates. Very rare; only one copy in German postwar auction records. No copy in America (OCLC). - Binding somewhat rubbed and bumped. Frontispiece of II remargined (not touching image), otherwise clean and wide-margined throughout. Exceptionally well-preserved sammelband containing three rare works on applied astronomy and the much-sought German editions of two classic works of modern astronomy. Ms. ownership note "CMB" on front pastedown; ms. table of contents on flyleaf. I: Fromm 16973. - II: Houzeau/L. 8890. Roller/G. I, 121. Poggendorf I, 203. - III: Hirsching XI, 261-263. Lalande 512. HAB Mass, Zahl und Gewicht 11.11 (only later eds.). - IV: Cf. DSB VI, 611. V: Lalande 428. Houzeau/L. I, 9758. Meusel II, 406. ADB V, 326.
