BOYLE, ROBERT. 1627-1691.
New Experiments Physico-Mechanical, Touching the Spring of the Air, and its Effects.... Oxford: printed by H. Hall for Thomas Robinson, 1662.
3 parts in 1 volume. 8vo (199 x 146 mm). , 207, , 122,  blank, , 98 pp. Half title, separate title for each part. 1 engraved plate (of 2). Woodcut on title page, woodcut initials and headpieces. 19th century full calf, morocco spine label, covers ruled in blind with blind-tooled floral cornerpieces. Lacking folding plate, fore-margin of present plate trimmed, soiling to title and occasionally throughout, some toning to leaves, loss to margins of two leaves (with no loss of text).
Provenance: Ebenezer [?] Allen, Richard Cranch (early ownership inscriptions to half-title, both crossed out); John Peirce (professor of chemistry at Brown University from 1862-64; ownership signature, Brown donor inkstamp to half-title); Brown Library (blindstamp to half-title).
Second and most important edition, publishing for the first time "what Boyle called an 'hypothesis' but what we know as 'Boyle's Law': that the volume of air in a confined space varies inversely as the pressure" (PMM). Fulton 14; Garrison-Morton 666; PMM 143; Wing B3999.