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Scientific American, Vol. 55, No. 19 (November 1886) (1886)

leaf 7

An illustration from Scientific American, Vol. 55, No. 19 (November 1886), 1886, leaf 7
ines Charles Marvin, who has written much concerning the Priestman's machines, made to the order of the Mer- throws several hundred men out of employment and, it Russian petroleum wells and refineries, has the fol- sey . Docks Board, and can be seen working in Liver- is believed, sounds the death… … IMPROVED DOUBLE DREDGER. © 1886 SCIENTIFIC AMERICAN, INC

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