Description
The discourse made before the Royal Society the 26 of November 1674. Concerning the use of duplicate proportion... together with a new hypothesis of springing or elastique motions. London: J. Martyn, 1674. 12mo, [32], 135pp., fore margin of first gathering slightly dampstained and extreme fore edge of few leaves slightly frayed; bound with Grew, Dr. Nehemiah A discourse made before the Royal Society, Decemb. 10 1674. Concerning the nature, causes and power of mixture. London: John Martyn, 1675. 12mo, [17], 120pp., eighteenth century calf, neatly rebacked, spine gilt
Footnote
Note: Petty: first leaf of preliminaries with imprimatur, last leaf of same with errata, Wing P1919; G1948