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Scientific American, Vol. 63, No. 23 (December 1890) (1890)

leaf 14

An illustration from Scientific American, Vol. 63, No. 23 (December 1890), 1890, leaf 14
Tunnel as the work proceeds. Tunnel "B" to be lyengraved Portrait of someeminentman of science) 18 91 Now is the Time to Subscrilie. 18 91 driven from bottom of proposed Slope with one heading. with a Bioffi apliical Sketch. The material excavated and the water from Tunnel " A " There is hardly a… … cles when the domestic iirticle of suitable quality can be obtained. For specifications, blank proposals, and all "THE BEST PERIODICALS FOR FAMILY READING." other information, apply at above address to W. L. MARSHALL. Capt. CorpK of Engineers, U.S.A. and expects in the future, UH. Engineei' Office,…

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