the officer in a ship who has the charge of the boats, sails, rigging, colours, anchors, cables, and cordage. It is also the duty of this officer to summon the crew to their duty; to assist with his mates in the necessary business of the ship; and to relieve the watch when its time expires.

He has a mate who has the charge of the long-boat, for setting forth anchors, weighing or fetching home an anchor, warping, towing, or mooring.