Digby (Sir Kenelm) Two Treatises, in the One of Which, the Nature of Bodies; in the Other, the Nature of Mans Soule; is Looked Into: in the Way of Discovery, of the Immortality of Reasonable Soules, first edition, woodcut head- and tail-pieces and initials, lacking final blank, title a little soiled, with chipping and restoration to outer margin, 3N3 with lower corner restored, 18th century manuscript note addressed to James Wyld regarding the sale of a horse, upper hinge strengthened, bookplates, contemporary calf, rebacked, upper joint cracked ,corners and fore-edge strengthened and repaired, [Wing D1448], folio, Paris, Gilles Blaizot, 1644.
⁂ Digby's chief philosophical work, the publication of this volume marked the introduction of Gassendian and Cartesian atomism into England. He aimed to prove the immortality of the rational soul and its distinction from the material body. In the first treatise he provides the first important defence of Harvey's theory of circulation of the blood in English. The work also contains "the fullest early account in English of teaching the deaf to lip-read", a practice Digby had first observed at the Spanish court, and which he had reported to Prince Charles.
Provenance: James Wyld Jnr.; John Farquhar Fulton (1899-1960), American neurophysiologist and science writer (bookplates)