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Scientific American, Vol. 37, No. 1 (July 1877) (1877)

leaf 1

An illustration from Scientific American, Vol. 37, No. 1 (July 1877), 1877, leaf 1
en suggested to heat the interior of the retort or of carbon in cast iron being limited, a large proportion of set in warm water for a short time, and agitate occasionally chamber in which the ore is placed by the combustion of part cast iron must be added, if much addition of carbon be re- till… … HUNT'S SYSTEM OF SCREW PROPELLERS. © 1877 SCIENTIFIC AMERICAN, INC

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