Tracts: Containing I. Suspicions about some hidden qualities of the air; with an appendix touching celestial magnets, and some other particulars. II. Animadversions upon Mr. Hobbes's Problemata de vacuo. III. A discourse of the cause of attraction by suction
ABSTRACT:
The contents of the volume, including three additional tracts, each with special t.-p., are arranged differently from the copy described by Hazlitt (Bibl. coll. & notes, 3d ser., p. 22) and from other copies varying from Hazlitt's.