Worthen, William Ezra, 1819-1897, [from old catalog] ed · New York, Appleton · leaf 443
y are farthest fromthe river-wall, these are again to be brought into their general position by two curves,each not less than 80 feet in length. The wliole of the cast-iron shall receive one coat priming of red lead and linseedoil, and three coats best coal-tar, before fixing; and the accessible… … FiG. 1017. responding to the substructure and the superstructure. The substructure isformed by a mass of natural and artificial rip-rap, with a central core of stonesweighing about two hundred and fifty pounds each, resting on the bottom, andrising to a level of one metre above low tide. The shore…
Mechanical drawing
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