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Thames sailing barges still drift, as in TS Eliot’s The Waste Land, down Greenwich reach, past the Isle of Dogs: “With the turning tide/ Red sails/ Wide/ To leeward, swing on the heavy spar.”

The heavy spar, which had been bumping heavily against the side, fell clear.

It has a high specific gravity, and hence is often called heavy spar.

The bowsprit was crossed by a heavy spar, on which a square-sail was hoisted.

The Kentucky galena cannot be economically separated from the containing heavy spar.