Public domain
Steel alloy manufacture. Allegheny Ludlum Steel Corporation, Brackenridge, Pennsylvania. Quality in the manufacture of steel requires constant control and research. This chemist is weighing the elements of a steel alloy to determine its exact composition. Analysis is determined to 1/1000 of 1 percen
From the collection of Library of Congress. Free to download, adapt and use — no permission needed.
Credit lineSteel alloy manufacture. Allegheny Ludlum Steel Corporation, Brackenridge, Pennsylvania. Quality in the manufacture of steel requires constant control and research. This chemist is weighing the elemen. 1940-01-01. United States. Office Of War Information, Palmer, Alfred T.. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.
Similar works
Untitled photo, possibly related to: Kingman (vicinity), Arizona. Mr. Relling, in the laboratory, analyzing tungsten ore and concentrates in a plant near the Boriana mines where the chromium-like metallic elements are obtained
Science and research. Studies of non-coking coals. William S. Landers, assistant chemical engineer at the Golden, Colorado field station of the U.S. Bureau of Mines, takes a reading from moisture distillation apparatus which determines the water content of coal. Most western coal is high in oxygen a
F.B. Tough, 9/5/22
Salinas, California. Intercontinental Rubber Producers. Harry Baucher, head chemist, works in the company laboratory on deresinating tests. With deresinating equipment now under construction at the Salinas farm, rubber from guayule will be suitable for ninety percent of all uses of plantation or tre
Sheffield, Alabama. Reynolds Metal Company. Mr. Giles, research director, with apparatus for determining the amount of pure aluminum in various oxides produced during the process of producing aluminum pigs
E.D. Coleman, 3/9/23