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Scientific American, Vol. 46, No. 22 (1882) (1882)
leaf 7
mplete establishment for railroad occupies a space 30 feet square. It will turn, bore, and cut a the central part of the island is a horseshoe-shaped valley, work in general. The large machine and repair shops of key way in wheels of any size up to 16 feet in diameter by more than four miles in… … should follow. 25 minutes, © 1882 SCIENTIFIC AMERICAN, INCInternet Archive · Public domain (published before 1931). Free to use for anything.
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