Papers concerning tidal harbours, including the proceedings of the Commission on the State of Tidal Harbours; notices of the Commission's meetings; minutes of evidence before the Commission, including evidence from G. Stephenson, J.M. Rendel and W. Cubitt; a report by the Commissioners on the port of Hull; reports on Southwold harbour; R. Stevenson's report on the Tay navigation, with plans of proposed harbour and railway crossings; improvements to the Severn River; suggestions and improvements to Dover harbour, including two plans of proposals; draft conclusions of the Commission; the First Report of the Commissioners featuring proposed improvements for Rye, Harwick, Montrose, Southwold and Glasgow; capital returns of British harbours; the Second Report of the Commissioners featuring improvements to London's port and the River Thames; the report of the Clyde Trustees; printed letters by W. Yetts on the Yarmouth bar and harbour and the knight of Kerry and Wexford harbour, with three plans; newspaper accounts of river and harbour improvements; J. Rennie's suggestions for improvements to Chester harbour and the River Dee, with a map; and H.M. Denham's storm report for Liverpool, 1839. The correspondents include S. Herbert, F. Beaufort, C.H. Potts, J. Washington, T.A. Larcom and W. Denison.