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Scientific American, Vol. 65, No. 5 (1891) (1891)

leaf 7

An illustration from Scientific American, Vol. 65, No. 5 (1891), 1891, leaf 7
small machine shop, a YW) Y ff YY) the reefs of «i harbor. For ——— S— Ss blacksmith’s shop, and air over twenty years it has been — compressors for the divers, IT TT LATCH at work, and has proved the whilea complete electric plant Ai il aan most successful machine for aaa SS is installed for… … Copper was not attacked by shell having a large central any of the mineral oils ; sperin aperture. This dome is sus- oil had the least and tallow pended from the catheads by the chain tackles men- |the most action on it. Generally speaking, miueral explosive are placed in the holes and exploded by…

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