: Philosophical Transactions 88, part I, pp. 469-526. London: Peter Elmsly, 1798." />
17 June 2008
CAVENDISH, Henry (1731-1810). "Experiments to determine the Density of the Earth." In: Philosophical Transactions 88, part I, pp. 469-526. London: Peter Elmsly, 1798.
4o (274 x 215 mm). 2 engraved folding plates. Contemporary calf, spine elaborately gilt (one spine label renewed).
FIRST APPEARANCE. "Cavendish was the first to observe gravitational motions induced by comparatively minuted portions of ordinary matter. The attractions that he measured were unprecedentedly small, being only 1/500,000,000 times as great as the weight of the bodies. By weighing the world he rendered the law of gravitation complete. The law was no longer a proportionality statement but a quantitatively exact one; THIS WAS THE MOST IMPORTANT ADDITION TO THE SCIENCE OF GRAVITATION SINCE NEWTON" (DSB emphasis added). Norman 422.
[Bound with:] THOMPSON, Benjamin, Count Rumford. "An Inquiry concerning the Source of the Heat which is excited by Friction." In: Philosophical Transactions 88, part I, pp. 80-102. London: Peter Elmsly, 1798. Engraved folding plate. FIRST APPEARANCE. Dibner Heralds of Science 151; Norman 2073.
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