Scope and Contents Correspondence and papers on various scientific topics. The papers begin with work on electricity and magnetism, including W. Thomson's transfer of galvanic currents; J. Tyndall's lecture on magnetic repulsion delivered to the Royal Institution; and C. Chalmers' notes on electricity. There are samples of J.C. Clark's chemical telegraph; material on I.K. Brunel's proposal of voyages to India; various barometer readings; longitudes of Paris, Lancaster, Torbay and Algeria; and a letter by D....

Scope and Contents Miscellaneous works and calculations regarding engineering, including J. Fowler's calculations on a road-bridge; strains on bridges; Airy's views on suspension bridges; a proposed safety railway; C. Fay on a continuous railway brake; an article from 'The Chester Chronicle' on the Great Channel Tunnel; a report, with drawings, on a safety steam boiler; a rainfall chart; a sketch of a rotary valve, with a paper model; R. John's surveying stand; the preservation of ship's timber; the notices,...