inches in length, 11 feet 9 inches of Inspection and Survey, the “Moccasin” and the in diameter, and they displace, when submerged, 120 “Adder” both achieved speed results considerably tons. When running on the surface they are driven above those called for by the contract. The “Adder” To these by… … and the air flasks, in which A BRICKLAYING MACHINE. fresh air for living purposes is by half a knot on the surface, by one knot when stored at a pressure of 2,000 pounds to the square posts a wooden girder B is secured. upon which a 6- awash and by one-half a knot when completely sub- inch. The…
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