Papers and correspondence on improvements to navigation on the River Dee, including papers on the history and organisation of the River Dee Company; comparisons of old and new standards at Chester; records of tides at Chester and Liverpool, with meteorological remarks from 1769; a report on the Company titled 'Dee Standard Restoration'; observations, calculations and discussions on the old and new level of the River Dee at Chester; plans of the River Dee for 1684, 1732, 1771, 1839 and 1849; a profile of the River Dee; and plans of land owned by the Company. The correspondents include R.S. Dundas and J.W. Lubbock.