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... STEAMW SUPERSEDED. 3 A N Account of the ELECTRO-MAGNETIC At~ENGIN E, which has been applied with Icorn- to the Propulsion of LOCOMOTIVES, t VHIPS, MILLS, and every species of Mechanical r Movement. With DRAWINGS of the Machinery and necessary Apparatus. Price 2s. Sherwood and Co. Paternoster Row; Roake and Varty, Strand ; and all Booksellers. 4 17ING'S COLLEGE, LONDON.-MEDICAL K DEPARTMENT, ...