Useful and correct accounts of the navigation, of the rivers and canals west of London : Comprising, important and interesting particulars of information; with tables of distances; time of navigating; and prices of carriage, on each river and canal. Prepared for the use of river and canal share proprietors, committees, merchants, clerks, agents, manufacturers, wharfingers, navigators, and traders in general. The whole illustrated with a neat engraved and coloured map. The second edition, much improved, by Mr Z. Allnutt.