Astronomy.- Monnier (Pierre Charles le) La Theorie des Cometes, first edition, half-title, 4 folding engraved plates, folding table, contemporary calf, gilt, 8vo, Paris, 1743.*** Scarce work based on, indeed much a direct translation of Halley's Cometographia of 1726. Page 65 includes the announcement of his prediction of the return of his eponymous comet "de sorte que je puis avec assez de certitude annoncer son retour pour l'an 1758."Provenance: The Earls of Macclesfield (South Library bookplate and small blind-stamps to first few leaves, as usual).