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Scientific American, Vol. 88, No. 7 (1903) (1903)
leaf 4
great sandstone States, is not only still in the attained. The circumference of this pit exceeds a mile the rough stones of large dimensions into smaller ones lead, but the value of her product has shown a notice- of various sizes are simply long strips of iron which and a half. To one who has… … THE SANDSTONE QUARRIES OF OHIO, © 1903 SCIENTIFIC AMERICAN, INC.Internet Archive · Public domain (published before 1931). Free to use for anything.
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