Gross tonnage. Entire cubical capacity of ship, including every inclosed space and all room under deck from stem to stern-post, if closed in and usable.
Gunwale, gunnel. Upper part of sheer-strake, where it comes in contact with upper deck stringer.
Headlights. Lights carried at the masthead.
Head of the bowsprit. The forward end.
Hull. The entire structure of a vessel, exclusive of equipment.
Inboard. Within the ship.
Inner skin. Planking or plating covering the inside of frames.
Jack. Name given to various sails, ropes, etc.
Jib. Triangular sail carried on a stay reaching from the foremast head or from topmast to the jib-boom.
Keel. Backbone of a vessel in wooden ships. Composed of great lengths of timber connected to each other by scarfs. In steel ships usually a set of plates from stem to stern.