THE LONDON JOURNAL OF Arts and Sciences; AND REPERTORY OF PATENT INVENTIONS. CONDUCTED BY Mr. W. NEWTON, OF THE OFFICE FOR PATENTS, CHANCERY LANE. (Assisted by several Scientific Gentlemen.) VOL. XV. (CONJOINED SERIES.) LONDON: PUBLISHED BY W. NEWTON, AT THE OFFICE FOR PATENTS, 66, CHANCERY LANE, AND TOWN-HALL BUILDINGS, MANCHESTER; SHERWOOD, gilbert, LIST OF PLATES IN VOL. XV. I. Sewell's White Lead Apparatus; Du Maurier's Carriage II. Fletcher's Improved Loom; Smith's Boiler; and Jones's III. Topham's Sluice Cocks, and Fairbairn's Loom for IV. Newton's Drilling Machine; Darthez's Axletree; and Thomas's Apparatus for Stopping Horses. V. Heginbotham's Propelling Apparatus; Hawkshaw's Railway Signals; and Hall's Lubricating Apparatus. VI. Sewell's White Lead Apparatus, and Jones and Mello- VII. Callet's Improvements in Producing Motive Power; Hoard's Apparatus for Refining Sugar; and Lukyn's Improvements in fixing Artificial Teeth. VIII. Captain Smith's Improvements in Steam Vessels; Lund's |