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 suction by attraction. By the Honourable Robert Boyle, Esq; Fellow of the Royal Society - Boyle, Robert (printed by W[illiam]. G[odbid]. and are to be sold by M. Pitt, at the Angel against the Little North Door of St. Paul's Church, 1674)
"Observations about the grovvth of metals in their ore exposed to the air," "Some additional experiments relating to the suspicions about the hidden qualities of the air," "Animadversions upon Mr. Hobbes's problemata de vacuo," "Of the cause of attraction by suction," and "New experiments about the preservation of bodies in vacuo Boyliano;" each have separate pagination, register, and title page, with "printed by William Godbid, and are to be sold by Moses Pitt, .. 1674" in imprint. - Fulton notes that the title page may be a cancel. - Fulton, J. Boyle, 119A. - General title page has printed date of 1675. The "5" in the date has been changed in ink to a "4". Other changes in MS. in the title page are: "suction by" crossed out. "by suction" added after "attraction". - Printer's name from Wing CD. - Reproduction of original in the Bodleian Library. - Wing (CD-ROM, 1996), B4054A