The book of the fair; an historical and descriptive presentation of the world's science, art, and industry, as viewed through the Columbian Exposition at Chicago in 1893 (1893)
Bancroft, Hubert Howe, 1832-1918 · Chicago, San Francisco, The Bancroft Co. · leaf 21
n armor of an iron clad, the result is uniform. Shells and other projectiles used by the government are welded by this company, and there are here on exposition sheets of wrought iron, four inches thick, which have been pierced by shells at a distance of ninety feet, their lines of juncture still… … said to possess four times the resistive power of the finest grade THE HOLTZ INDUCTOR
