LITTLE, BROWN & Co., Boston, HAVE JUST PUBLISHED, LOWELL HYDRAULIC EXPERIMENTS; Being a selection from Experiments on Hydraulic Motors, on the flow of Water over Weirs, and in Canals of uniform rectangular section and of short length; made at Lowell, Mass. By J. B. FRANCIS, Civ. Eng. &c. 1 Vol. 4to.; 15 Plates, beautifully engraved. Price, $ 10. CHAS. H. HASWELL, No. 6 Bowling Green, New York, Late Engineer in Chief U. S. N., Consulting and Superintending Engineer, and Surveyor of Steamers for the Underwriters of New York, Philadelphia, Boston, and at Lloyd's, London. Designs, Specifications, and Contracts for Steam Vessels, Steam Engines, Boilers, Mills, &c., either for marine or land purposes, will be furnished upon application. Superintendence of the construction and repairs of steam vessels and their dependencies and of steamers in operation. For Sale, Steamers, Steamboats, Steam Engines, &c. of all descriptions, a Registry of which can be referred to on application. Engineers, Steamers, &c., &c., furnished with Worthington Pumps; Independent, Steam Fire and Bilge Pumps, Salinometers, Machinery Oil, Steam and Vacuum Gauges, Wire Rope, &c., &c., &c. AMERICAN AND EUROPEAN AGENCY. I am prepared through my Agents and Partners, to obtain Letters Patent for American Inventions, in the Canadas and different portions of Europe, or to dispose of Patent Rights advantageously. JAS. C. G. KENNEDY, To Readers and Correspondents. The Committee on Publications, anxious to render this work as valuable as possible have determined to offer a liberal compensation for original articles on the subjects to which this Journal is devoted; and they acccordingly invite mechanics and men of science to communicate their observations. WAREHOUSE, No. 85 South Third Street, Philadelphia. MORRIS, TASKER & MORRIS, MANUFACTURERS OF Lap-Welded Iron Flues, For LOCOMOTIVE, MARINE, and STATIONARY STEAM BOILERS; sizes 14 inches to 7 inches outside diameter, cut to specific length, 2 feet to 20 feet, as required. Wrought Iron Welded Tubes, For GAS, STEAM, or WATER, from -inch to 6 inches bore, with screw couplings, branches, bends, crosses with equal or reducing outlets. VALVES and STOP Cocks of brass or iron. SCREWING MACHINES, STOCKS and DIES, TAPS, &c., for iron tubes. Coils of Tube, To order for boiling and evaporating by steam. Tuyere Coils for blast furnaces, &c., &c. Artesian Well Pipe, Of wrought iron, 3 inches to 6 inches bore, screwed together flush in and outside: or of Cast Iron 6, 8, 10, or 12 inch bore, with wrought bands, flush outside. Iron Castings, COLUMNS, CONDUITS, PAVEMENT GUTTERS, WATER and GAS MAINS, RETORTS, DRIPS, BRANCHES, &c.; GREEN HOUSE BOILERS, and PIPE for Hot Water circulations. PLANCH STEAM PIPES, SMOKE PIPES, BATH TUBS, SOIL PANS, TRAPS, &c. Rosin Gas Generators, Single or double RETORT STOVES. Sizes adapted for PUBLIC INSTITUTIONS, SUGAR HOUSES, HOTELS, FACTORIES OF PRIVATE RESIDENCES, RAILROAD STATIONS, &c. APPARATUS FOR WARMING AND VENTILATING BY STEAM OR HOT WATER CIRCULATION. DOUBLE KETTLES and STEAM COOKING arrangements, &c., fitted up on most approved plans. |