. Industrial Education Magazine . XV. A. WILEY Engineering Series Book Oxy-AcelyleneWelding Manual By Lorn Campbell, Jr. Formerly Lieut. U. S. A., in charge ofWelding Instruction, Ordnance Depart-ment, U. S. Army. A practical text on oxy-acetylenewelding and cutting of Cast Iron,Steel, Brass, Aluminum, and Malle-able Iron. Apparatus and its opera-tion and repair, shop equipment, andpreheating agencies are taken up in aclear and simple manner. For classroom use and as a refer-ence in actual shop practice, this bookis unsurpassed. 154 pages, 5% by 8—Illus.—$ postpaid. Test it for 10 days—FRE


. Industrial Education Magazine . XV. A. WILEY Engineering Series Book Oxy-AcelyleneWelding Manual By Lorn Campbell, Jr. Formerly Lieut. U. S. A., in charge ofWelding Instruction, Ordnance Depart-ment, U. S. Army. A practical text on oxy-acetylenewelding and cutting of Cast Iron,Steel, Brass, Aluminum, and Malle-able Iron. Apparatus and its opera-tion and repair, shop equipment, andpreheating agencies are taken up in aclear and simple manner. For classroom use and as a refer-ence in actual shop practice, this bookis unsurpassed. 154 pages, 5% by 8—Illus.—$ postpaid. Test it for 10 days—FREE. John Wiley & Sons, Inc., 132 Fourth Ave.,X. Y. may send me the following on 10 daysapprova l: Oxy-Acetylene Welding ManualBy Lorn Campbell, agree to pay for I lie book or return itwithin 10 days of receipt. Also please send me a copy of your Voca-tional News and put my name on your mail-ing list. Xame School < ifficial Positii n Address MTM 12-20 FIELD NOTES—(Continued) It will be of interest to the la


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