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42 Mavyari * PIG IRON Mayartr is a natural nickel-chromi- um pig iron and offers a simple, very economical method of making heat- resisting alloy-iron castings for grate- bars and other furnace parts. Cast- ings made with a small percentage of Mayari added to the cupola mixture have much longer life under high- temperature conditions, with but slight increase in cost. Mayari also gives increased wear-resistance and much longer life to machinery parts, such as engine and pump cylinders and piston rings. Further, the use of Mayari results in castings that are free from blow- holes, spongy spots and other imperfections, and that machine easily to a smooth, dense, highly wear-resisting surface even on a thick section. Just *phone or write to the nearest Bethlehem office, and we will be glad to send one of our foundry specialists to dis- cuss the application of Mayari to your uses. BETHLEHEM STEEL COMPANY General Offices: Bethlehem, Pa. District Offices: Atlanta, Baltimore, Boston, Bridgeport, Buffalo, Chicago, Cin- cinnati, Cleveland, Dallas, Detroit, Houston, Indianapolis, Milwaukee, New York, Philadelphia, Pittsburgh, St. Louis, St. Paul, Washington, Wilkes-Barre, York. Pacific Coast Distributor: Pacific Coast Steel Corporation, San F rancisco, Seattle, Los Angeles, Portland and Honolulu. Export Distributor: Bethlehem Steel Export Corporation, New York, INDEX To ADVERTISERS American Shipbuilding Co. .........:::ceeeeeeees Back Cover Bethlehem: Steel Go. i cis seteccscsecossvsrsessonsscexesedecanses 42 Bolarid: Geo Corre hiss eiccc cosa at ss st dor eeeacs cent sueneeeanenatee 41 Coal Handling & Marine Machinery, Ine. .............. 40 Blectric Storage: Battery: Cos resi iicccesestanes 37 Elwell-Parker Electric Co................... Inside Back Cover Generali Mlectric: COs Gi ii Couircacetietaes a ek seer esas toscacas 6 Hamburg-American: Times) iicicciiecsecccckcccsioes feonecscsecceneees 41 Jergusen Gage & Valve Co. :ccccau niscssscaesscisiecstins 41 Linde Air /Prodiicts' Coys. crc 3 Midland) Barge: Conc Peach skis os ee 41 Newport News Shipbuilding & Dry Dock Co........... 4 Oxweld>Acetylene!Cos 163. b hh eee aes 3 Brest: O=Wite: Co vine: x esasn ask ee ee 3 Reading Bis Wie ccc eae ie eae ne eet oe ae eas 4] Sun Shipbuilding & Dry Dock Co.....Inside Front Cover Union Carbide & Carbon Corp. 0........cecccccssccesscceeeees 3 Union -Carbide:Sales: Coie 23. 3 Upson-Wialton:. Co: 2The ieee 4] Westinghouse Air Brake Go. 2s). 39 KNOWN OR UNKNOWN Generally represents the difference be- tween big and little business. A known product sells with less sales effort because buyers have confidence in an advertised product. Non-adyer- tised products are strangers to be doubted. Don’t handicap your business by fail- ing to properly advertise your products. | MARINE REVIEwW—December, 1934