Sailing directions for the river Thames, from London, to the Nore and Sheerness, and thence to Rochester, in the river Medway; also from the Nore, through the Swin and King’s channel, to Harwich, Hollesley bay, Orfordness, & Yarmouth: and through the Queen’s, South and Prince’s channels, to Margate, Ramsgate, the Downs, and Dover. To which are added, tables of the new rates of pilotage. Intended to accompany a new chart of the entrances to the river Thames, drawn by J.W. Norie