Jaws. The inner ends of booms or gaffs, hollowed in.
Jeers. Tackles for hoisting the lower yards.
Jewel-blocks. Single blocks at the yard-arms, through which the studdingsail halyards lead.
Jib. (See Plate 2.) A triangular sail set on a stay, forward.
Flying-jib sets outside of the jib; and the jib-o'-jib outside of that.
Jib-boom. (See Plate 1.) The boom, rigged out beyond the bowsprit, to which the tack of the jib is lashed.
Jigger. A small tackle, used about decks or aloft.
Jolly-boat. A small boat, usually hoisted at the stern.
Junk. Condemned rope, cut up and used for making mats, swabs, oakum, &c.
Jury-mast. A temporary mast, rigged at sea, in place of one lost.