To Turn in. To withdraw; to order under cover; as, to turn in the guard.

TURNPIKE, (Barriere, Fr.) An obstacle placed across a road to prevent travellers, waggons, &c. from passing without paying an established toll. British officers and soldiers regimentally dressed, and on duty, pass through turnpikes gratis.

Turnpike is also used in the military art, for a beam stuck full of spikes, to be placed in a gap, a breach, or at the entrance of a camp, to keep off the enemy. It may be considered as a sort of cheval de frize.

TURPENTINE. A very combustible resin, much used in the composition of fire-works. All resins are discriminated from gums, by being soluble in oil but not in water; gums the contrary.

TURRET. A small tower.

Moveable Turrets. See [Towers].

TUSSULDAR, Ind. The East India company’s collector of the kistybundy.

TUYAU, Fr. Any pipe, &c. of lead, or gutter, or canal, made of burnt clay, &c. which serves to carry off the water from the roof of a house.

Tuyau de cheminee, Fr. The cylindrical conduit which receives and lets out the smoke at the top of a chimney.

Tuyaux de descente, Fr. The pipes which convey the water downwards.