A treatise on the commerce and police of the river Thames : Containing an historical view of the trade of the port of London; and suggesting means for preventing the depredations thereon, by a legislative system of river police. With an account of the functions of the various magistrates and corporations exercising jurisdiction on the river; and a general view of the penal and remedial statutes connected with the subject, By P. Colquhoun, LL. D.