Vol. for 1941 has title: Welding encyclopedia, and the welding industry buyers' manual.
"A practical reference book on autogenous welding", [1st]-8th ed.; "A practical reference book on metallic arc, carbon arc, oxy-acetylene, electric spot, butt, flash and resistance welding, thermit welding, and metal spraying", 9th-10th ed.
"Compiled and edited by": 1921-24, L.B. Mackenzie, H.S. Card; 1926-32, H.S. Card; 1938-41, "re-edited by" Stuart Plumley; 1943- "completely revised and re-edited by" T.B. Jefferson.