xtent of the earth cutting. Ocean tides. Theclimate. Prevalent diseases. Cost of the canal in lives.Cost of the work. Contained in Scientific AmericanSupplement, No. (jo3. Price 10 cents. To be had atthis office and from all newsdealers. kllfAir Furnaces. Expose an Immense HeatedSurface. Extract… … INVENTORS and others desiring new articles manufac-tured and introduced, address P. O. Box 86, Cleveland, O.
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