... made one very interesting experiment a few days ago in the interest of a large bicycle company which sent to him specimens of carbon steel and nickel steel for the purpose of having him test them with the Roentgen rays, and see if they showed any radical differences in the crystalline structure. Photographs were taken as desired, but at the time of my visit only negative results had ... — McClure's Magazine, Vol. 6, No. 5, April, 1896 • Various
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