COMETS – GHISILIERI, Antonio (1685-1734). Predizione della cometa dell'anno 1736. Bologna: 1735. Engraved title and 10 folding plates, woodcut head- and tailpieces, initials. [Bound after:] – Il pronostico avverato fatto ... vescovo d'Azoto e posto ora avanti il suo libro intitolato Predizione della cometa MDCCXXXVI. Bologna: 1737. Engraved folding plate, woodcut head- and tailpieces, initials. 2 works in one volume, 4° (210 x 147mm). ?Contemporary pasteboard binding (lacking spine, extremities rubbed). [Sold with:] HARRIS, John (c.1666-1719). Dialoghi astronomici. Venice: 1751. 8° (165 x 105mm). Engraved folding plate, final blank. (Occasional light spotting.) Contemporary vellum (lightly soiled and rubbed). First Italian translation of Harris' Astronomical Dialogues between a Gentleman and a Lady (London, 1719). [And:] MONTANARI, Geminiano (1633-1687). Copia di lettera ... Scritta all'illustrissimo signor Marchese Gio. Gioseppe Orsi a Mantova. Bologna: 1676. 4° (210 x 142mm). 12pp. Folding woodcut plate. (Light scattered spotting.) Modern boards. Provenance: removed stamp on title affecting a few letters. [And:] RAIMONDO, Annibale. Discorso ... Sopra la nobilissima cometa, che comincio apparire il Nouembre 1577. Venice: 1577. 4° (195 x 145mm). Large woodcut device on title and on final leaf, text-illustration of the position of comets, and one initial. (Occasional faint spotting and soiling.) Modern boards (crudely backed with cloth tape, extremities rubbed). [And:] SALISTRI, Matteo. Discorso fisico astronomico ... sopra la cometa comparsa di Novemb. dell'anno 1680. Florence: 1681. 4° (212 x 151mm), 8pp. Title with woodcut vignette of comet's path, woodcut text-illustration, typographic ornamental headpiece. (Title torn and repaired without loss.) Modern wrappers. COLLECTION OF RARE ITALIAN TREATISES ON COMETS. Sold with 7 other similar volumes, including 3 works by Eustachio Zanotti.