from
Bouvier's Law Dictionary, Revised 6th Ed (1856)
LIGHTERS, commerce. Small vessels employed in loading and unloading larger
vessels.
2. The owners of lighters are liable, like other common carriers for
hire; it is a term of the contract on the part of the carrier or lighterman,
implied by law, that his vessel is tight and fit for the purpose or
employments for which he offers and holds it forth to the public; it is the
immediate foundation and substratum of the contract that it is so: the law
presumes a promise to that effect on the part of the carrier without actual
proof, and every principle of sound policy and public convenience requires
it should be so. 5 East, 428; Abbott on Sh. 225; 1 Marsh. on Ins. 254; Park
on Ins. 23; Wesk. on Ins. 328.