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St. Nicholas [serial] (1873)

Dodge, Mary Mapes, 1830-1905 · [New York : Scribner & Co.] · leaf 255

An illustration from St. Nicholas [serial], 1873, leaf 255
or that furnishes the air forthe brealcwater ; G, valve that regulates the supply of compressed air. them of their strength l^y upsetting the motioninside of the waves. The billows collapse likestricken giants, and then roll landward withoutpower enough left to do the pier harm. But.you will ask,… … THE BREAKWATER AT EL SEGUNDO. A, A, compressed-air line from shore station ; B, B, B, perforatedpiping on sea bed, from which air is discharged ;F, F, air line to advance pipe. The mass of the water does not move forward.A wave robbed of its internal motion collapses,and cannot pass on this motion…

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