76/1645 Boyle, R. Tentamina quaedam Physiologica. Diversis Temporibus, & Occasionibus conscripta. Amst., C. Commelin, 1667, 194,(2)p., woodcut printer's mark on title-p., contemp. gilt calf, 12mo. - BOUND AS USUAL with: Idem. Historia fluiditatis et firmatitis. Ibid., idem, 1667, 159,(1)p.

- Three diff. owner's entries on verso first free endpaper; occas. sl. foxed. A few trifle rubbed spots on covers. Good/ fine copy.

= From the library of J.W. SIX with his bookplate on upper pastedown. Fulton 29a; cf. Willems 1376; Rahir 1436; Wellcome I, p.221. "In the Essays Boyle gives the first clear outline of his corpuscular hypothesis concerning the nature of matter, which was to be the guiding principle of all his later chemical studies."