Sinking a Strand. Procedure followed when long splicing 4-stranded rope to 3-stranded rope. After splicing three strands, fourth strand is tucked under nearest strands as most convenient for making a neat finish.
Siren. Fitting that gives a powerful and penetrating sound that is caused by passage of steam, or air, through a rotating disc with numerous perforations. Can be trained horizontally so that maximum volume of sound can be emitted in any required direction. 2. Mermaid. In Greek mythology these were supposed to lure ships to destruction by resting on a rock and
Sirenia. Marine mammals that feed on aquatic vegetation.