Scientific American Supplement, No. 497 (July 11, 1885)

Scientific American Supplement, No. 497 (July 11, 1885)

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Scientific American Supplement, No. 497 (July 11, 1885) by Various Authors

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1885

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Scientific American Supplement, No. 497 (July 11, 1885)

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om Finland; at their outer termination the work is of a more durable kind, the facing is made of squared blocks of granite, so that it may stand the heavy surf which at times is raised by a west wind in the Gulf. These embankments, as already stated, extend over a space of nearly six miles, and represent a mass of work to which there is no counterpart in the Suez Canal; nor does the plan of the new Manchester Canal present anything equivalent to it. The width of this canal also far exceeds any of those notable undertakings. The open channel is, as stated above, 350 ft. wide; within the embankments the full depth of 22 ft. extends to 280 ft., and the surface between the embankments is 700 ft. This is nearly twice the size of the Suez Canal at the surface, which is 100 meters, or about 320 ft., while it is only about 75 ft. at the bottom; the Amsterdam Canal is 78 ft. wide. The new Manchester Canal is to be 100 ft. of full depth, and it boasts of this superiority over the great work of Lesseps. The figures give

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