HYDROGRAPHE, an hydrographer, employed by the state to teach navigation in the sea-ports.

J.

JAC, or Jacht. See Yacht.

JACQ. See Pavillon.

JALOUX, a name given in Provence to the quality of rolling violently at sea; or of being crank.

JAMBES de hune. See Gambes de hune.

JARDEN, a name sometimes given to the gallery or balcony of a ship.

JARLOT, the rabbit, or channel, cut in the stem afore, and in the stern-post abaft, &c. and into the keel, to receive the ends or edges of the planks which cover the timbers.

JAS, or Jouails d’ancre, the anchor-stock, or the two pieces of which it is composed.

JATTE, the manger. See Gatte.