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Linde’s welding handbooks In the early days, many a mile of concrete sidewalk crumbled because it was poorly laid. Now concrete sidewalks will last twenty years because people know and have been taught how to build them. With Oxwelding there is a similar story. Linde has worked out methods and detailed in- struction for all the common ap- plicationsofweldingandcutting. Suppose a Linde customer writes in to ask about cast iron welding. Originally complete instructions were sent to him in a letter. Then, as many cus- tomers wanted information on the same subject, a book was printed, for mailing on request. In this manner a Linde library has grown until it now numbers fifteen volumes, each devoted to one application of oxy-acetylene technique process. They are free to Linde customers as a part of Linde service. THE LINDE AIR PRODUCTS COMPANY Unit of Union Carbide and Carbon Corporation General Offices: Carbide and Carbon Building 30 East 42d Street, New York SP PLANTS boo aes 107 WAREHOUSES LINDE OXYGEN Vol. 57, No. 6, June, 1927 issue of MARINE REVIEW, published monthl i i D, s a ‘| y at Cleveland, Ohio. Entered as second class matter at the post office, Cleveland, Oh‘o, under the act of March 8, 1879. Subscription price $3.00 a year in U. S.; Canada, $4.00; Great Britain, £1; single mee 35c.