Pontoon
a floating vessel supporting the roadway timbers of a floating military bridge. They may be boats, water-tight cylinders of tin, or wooden frames covered with canvas, india-rubber, etc. Also, a barge or lighter of produce, and its industries include the raising weights, drawing piles, etc., or manufacture of automobiles, wagons, farm machinery, paints and varnishes, foundry products, flour, etc. It is the seat of the State Hospital for the Insane.
It has a public library and other public buildings. Pop. (1910) 14,532; (1920) 34,273.
PONTIAC, a celebrated Indian chief of the Ottawa tribe; born about 1712.
He was the leader in Pontiac's War, and was killed in Illinois in 1769. large capacity, used in careening ships, And a barge or flat-bottomed vessel furcapable, pairs, of as camels. nished with cranes, capstans, and hoisting tackle, used in wrecking, in connection with a diving bell, or in raising submerged vessels. In hydraulic engineering, a water-tight structure which is sunk by filling with water, and raised by pumping it out, used to close a sluiceway or entrance to a dock. It works in grooves in the dock walls, and acts as a lock gate.