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GRAHAM, Thomas. XVII. On the Molecular Mobility of Gases [From the Philosophical Transactions of the Royal Society London, June 1863].

London. Dulau & Co., 1863. First offprint edition.
Quarto. 385-405pp, [1]. With engraved illustrations in the text. Original publisher's tan paper wraps, title in pencil to upper cover. Some soiling to extremities, slight loss and chipping to wrap edges. Occasional spots of dust-soiling.
A lecture emphasising the essential differences between the three modes of gaseous motion - diffusion, effusion, and transpiration by chemist and master of the Royal Mint Thomas Graham (1805-1869). It is 'Graham's Law', first proposed in 1831, that explains the rate of diffusion of a gas - said rate being inversely proportional to the square root of the substances density.
£ 75.00 Antiquates Ref: 13324