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New Trade Publications PROPELLERS OF BRONZE—The Columbian Bronze Corp., Freeport, Long Island, N. Y., has just issued a new catalog entitled ‘Propellers in a Nut Shell.” This catalog deals with a full line of Columbian propellers which has been developed by this company after 25 years’ experience. Propellers for all types of services are described from the tiny ones used in attached motor boats to those in the largest ocean liners. Characteristics of propellers are discussed simply and clearly. The effect of diameter, shape and blade area is pointed out for various services and types of boats. The booklet is of 36 pages and is illustrated with cuts of propellers and boats. There is a price table given for smaller sizes of propellers, also table giving characteristics for propellers of different diameters. A table of speed for pitch and revolutions is also given, and a table for the size of three-bladed propellers based on the horsepower and the number of revolutions. PULVERIZERS—Raymond Bros. Impact Pul- verizer Co., Chicago, has issued a catalog de- scribing its automatic pulverizers with air sep- aration. These machines are manufactured in several sizes and may be used in grinding various materials. WELDING EQUIPMENT—Smith Welding Equipment Corp., Minneapolis, has issued a 55- page catalog showing the line of welding equip- ment manufactured by this firm. Welding and cutting outfits, generator outfits, torches, tips, preheating torches, regulators, etc. are de- scribed. Illustrations of each type of equip- ment assist in visualizing the particular part. PYROMETERS—Bristol Co., Waterbury, Conn., has issued a pamphlet describing its pyrometers and core oven recording thermom- eter. The pyrometers are of either the wall \type or portable type, and the fire end of the thermocouple for obtaining temperatures of nonferrous metals has two _ separate wires which may be replaced without disturbing the remainder of the _ couple. The metal bath forms the junction between the wire elements. STEAM TRAPS—Sarco Co. Inc., New York, is distributing a memorandum book to call at- tention to the features of its self-adjusting steam trap. ACETYLENE GENERATORS—Air Reduction Sales Co., New York, has issued a section of its catalog on generators for acetylene gas production, standard and portable. The vari- ous types are illustrated and data given. HIGH-TEMPERATURE CEMENT—A booklet by the General Refractories Co., Philadelphia, covers its high-temperature cement, with many illustrations to show its resistance to high temperature and other properties. Directions for its use to obtain best results are given. SLING CHAINS—S. G. Taylor Chain Co., Chicago, has issued a leaflet listing its types of sling chains, prices and safe loads at various angles. STEEL LOCKERS—Durabilt Steel Locker Co., Aurora, Ill., has issued a loose-leaf catalog of its product, containing description of the various types of lockers, with drawings of construct'on details and much other valuable material. Considerable text is included for the purpcse of aiding the user of lockers to choose types and styles, as well as arrangement of locker rooms. Color plates aid in decorative achievement. HOT-OIL PUMP—Wilson-Snyder Mfg. Co., Pittsburgh, has published a bulletin on _ its pump designed to move oil at 800 degrees and also for lower temperatures. Ruggedness of construction to withtstand high temperature is shown and described. ARC WELDING SETS—Constant-potential are welding sets as manufactured by the Gen- eral Electric Co., Schenectady, N. Y., are de- seribed and illustrated in a current bulletin. The set is self-contained and will supply cur- rent for any number of operators up to its capacity for metallic or carbon electrode welding. Assembly, wiring and panel layout are included in the illustrations. NAUTICAL CATALOG—An interesting book- let has been prepared by the McNab Corp., specialists in nautical and engineering ap- pliances, on what is called a _ dial-o-meter. This is a tank gage for land and marine use for indicating the fore and aft draft of ships; for measuring contents of fuel oil, ballast water, and other tanks. It may also be used for determining the maximum and minimum water levels in rivers and harbors. CHAIN SLINGS—Stressing the importance of proper slings and hooks for use with chain hoists, Herbert Morris Inc., Buffalo, N. Y., has issued a leaflet describing its ad- justable slings for various uses, each adapted to the particular problem presented in lifting various calsses of burden with safety and efficiently. TRAILERS—Clark Tructractor Co., Buchan- an, Mich., has issued a catalog of its trailers for industrial haulage with tractors, show- ing various types for different uses and de- tails of construction and operation. It is well illustrated. PUMPS—Dunning Pump & Mfg. Co., Phila- delphia, has issued a_ bulletin “describing a two-cylinder pump just added to its line. Business News for the Marine Trade Motor Tug I and Motor Tug II have been incorporated at New York for $15,000 and $45,000, respectively, by J. L. Aronson, O. Haakonsen and J. A. Lyon. Carmody, Mc- Laughlin, Easterday & Otto, 2 Rector street, are attorneys. Ipswich Steamship Corp., New York, has been incorporated with 2000 shares no par value by H. C. Hand, R. J. Gorman and S. C. Wood. J. R. Vanhorne, 67 Wall street, is attorney. Viking Towing & Transportation Co., New York, has been incorporated with $50,000 cap- ital to operate steam and sail boats by J. L. Aronson, O. Haakonsen and J. A. Lyon. Car- mody, McLaughlin, Easterday & Otto, 2 Rector street, are attorneys. Steamer Cedarhurst Corp., New York, has been incorporated with $100,000 capital by G. V. Reilly, W. M. Stevens and H. C. Hand, to operate steam vessels. Crowell & Rouse, 24 Broad street, are attorneys. Kobul Steamship Corp., New York, has been incorporated with $100,000 capital to operate steamships, by W. M. Stevens, H. C. Hand and G. V. Reilly. Crowell & Rouse, 24 Broad street, are attorneys. Steamer Castana Corp., New York, has been incorporated with $100,000 capital by H. C. Hand, S. C. Wood and W. M. Stevens, to operate steam vessels. Crowell & Rouse, 24 Broad street, are attorneys. 58 Steamer Vaba Corp., New York, has been incorporated with $100,000 capital to operate steamships, by S. C. Wood, H. C. Hand and W. M. Stevens. Crowell & Rouse, 24 Broad street, are attorneys. Tampa Shipbuilding & Engineering Co., Tampa, Fla., Ernest Kreher, president, Estuary street, is building first unit of shipbuilding plant on Nineteenth street, on site 320x40) feet, including machine shops, structural steel plant foundry and warehouse. will be removed to new site. Alderton Engineering Corp., Brooklyn, N. Y., has been incorporated with $150,000 capital to operate a shipbuilding business by L. H. Riej and E. A. Wililams. J. A. Davidson, 44 Court street, is attorney. Mystic Steamship Corp., New York, has been incorporated with 2000 shares no par value by H. C. Hand, R. J. Gorman and S. C. Wood. J. R. VanHorne, 67 Wall street, is attorney. Brooklyn-New Jersey Ferries, New York, has been incorporated with 1000 shares no par value by F. X. Clarke, R. G. Narelle and R. Hart. F. J. MacIntyre, 32 Broadway, is attorney. Tug Flannery Boys and eight other cor- porations with capital from $10,000 to $45,- 000 each have been incorporated in New York by G. Billo, F. H. Butehorn and F. C. Taylor. W. F. Purdy, 25 Beaver street, is attorney. Present plant MARINE REVIEW—June, 1927 Steamer Kishacoquillas Corp. has been in- corporated at New York with $100,000 capital by H. C. Hand, S. C. Wood and W. M. Stevens. Crowell & Rouse, 24 Broad street, are attorneys. International Refractory Engineering Corp. has been incorporated at New York with $10,000 capital to conduct a ship repairing business by F. E. Sayles and P. Tonnesen. A. E. Amsler, Richmond Hill, N. Y., is at- torney. General Stevedoring & Terminal Co., New York, has been incorporated with 1000 shares no par value by E. J. Keane and J. M. Sene- cal, 64 Wall street. Long Island Shipyard, Port Jefferson, N. Y., has been incorporated with $45,000 capital by G. M. Tooker and V. N. Edwards. V. G. Tooker, Bridgeport, Conn., is attorney. Mill River Boat Works, Hempstead, N. Y., has been incorporated with 100 shares no par value by E. Sprague, B. H. Myers and N. Nott. Wallace & Patterson, Rockville Center, N. Y., are attorneys. Lang Steamship Agency, New York, has been incorporated with $10,000 capital and 1000 shares no par value by A. F. Oslefest, A. Donald and A. Lang. Greenbaum, Wolf & Ernst, 285 Madison avenue, are attorneys. Oregon Steamship Corp., New York, has been incorporated with 2000 shares no par value by H. C. Hand and S. C. Wood.