GALILEI, GALILEO. 1564-1642.
Systema cosmicum: in quo dialogis IV de duobus maximis mundi systematibus, Ptolemaico & Copernicano, rationibus utrinque propositis indefinite differitur. Lyon: Joannes Antonius Huguetan, 1641.
4to (225 x 170 mm). *4 **4 A-3D4. Additional engraved title (within collation), woodcut diagrams. Remboitage in near-period vellum. Engraved title laid down, faint waterstain throughout, paper somewhat dry and brittle.
Provenance: G.B.E. of Trinity College, Oxford (ownership inscription on engraved title dated December, 1670); Mercantile Library of Philadelphia (inkstamps on verso of title and near end).
Second Latin edition of Galileo Galilei's great treatise Dialogo matematico. The first edition, in Italian, was published in 1632, and led to the author's imprisonment. A Latin edition appeared in 1635. The work was composed as a dialogue between three philosophers: "intellectually speaking, a radical, a conservative, and an agnosticit is a masterly polemic for the new science ... The Dialogo, far more than any other work, made the heliocentric system a commonplace" (PMM 128).