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Scientific American, Vol. 84, No. 12 (March 1901) (1901)
leaf 8
Boston underground system excavating for the incline in Maverick Square was cannot be rivaled by any of its contemporaries. The tered with a rich Portland cement plaster, and against done ^\ithout timbering the trench, and the earth was City and South London Railway, 3% miles long, con- this the… … AFFROACH TO THE BOSTON TUNNEL, MAVERICK SQUASfi. XHE MONOLITHIC, COBCBETE, ROOF OF THE TUNNEL. © 1901 SCIENTIFIC AMERICAN, INC.Patents · Feet · Automobile · Apparatus · Cubic feet · Horse power · Gas engine · Feed water · Scientific American · Motor carriage · Great Britain · Lorain steel · Acetylene gas · Movable jaw
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