Specific Gravity. Weight of any given volume of a substance expressed as ratio to weight of an equivalent volume of fresh water at temperature of 4° C.
Specific Volume. Amount of space occupied by a unit of mass. Of steam, is the space, in cubic feet, occupied by 1 Ib. at a given pressure.
Specksynder. Chief harpooner in a whaler; formerly in charge of whale-catching operations when on whaling ground.
Spectacle Eye. Flat plate with two eyes, pivoted at davit head to form attachment for guy and jackstay.
Spectacles. Figure-of-eight clew irons put in a sail for attachment of chain sheets.
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