"Sails." The sailmaker is meant.

Scuttle-butt. A cask containing fresh water.

Shackles. Rope handles for a sea-chest.

Sheet-blocks. Iron blocks, by means of which sails are sheeted home. In any violent wind they beat upon the mast with great rapidity and force.

Sheets. Ropes or chains which extend the lower corners of square sails in the operation of sheeting home.

Shifting suits (of sails). The operation of removing a ship's sails, and replacing them with others.

Shrouds. Wire ropes of great strength, which support lateral strains on masts.

Shroud-screws. Iron contrivances by which shrouds are hove taut.

Sidelights. A sailing ship carries two of these between sunset and sunrise: one green, to starboard; one red, to port.

Sights. Observations to help in the finding of a ship's position.