William HeatherChart of the St. George's and English Channels The dedication is unframed in the

William HeatherChart of the St. George's and English Channels The dedication is unframed in the top centre and reads To the Right Honorable the Master, Wardens and Elder Brethren of the Trinity House this Chart of the English Channel Is most humbly dedicated by their obedient Servant William Heather. This was first produced as a separate chart in 1794 on three sheets which may be joined together. A new edition was printed in 1805.It shows the Irish coast from county Clare to Wexford, the British coast from Barmouth to Yarmouth and Europe from Britany to Haarlem in the Netherlands. There are detailed soundings round the coast and in the open sea, as well as tide and current marks and notes on the sea bottom. Below the frame is the imprint Published as the Act directs, July 12th 1794 by W. Heather, at the Navigation Warehouse, No. 157 Leadenhall Street, London. The navigational route through the English Channel is marked by a hand and two ships on the left sheet and two further ships on the middle sheet. There are scales of latitude and longitude east and west from London on all four sides, as well as three coastal profiles in the top centre. Magnetic variation on the left sheet is dated 1794 and there are four compass arrows showing north to the top as well as four ships. (1,890 x 775 mm.).There are six insets in the right sheet, each with one compass arrow showing north to the top:1. (142 x 345 mm.) entitled Portsmouth, with a Scale of Miles 5 [= 30 mm.].2. (100 x 120 mm.) entitled Sketch of the Situation of The Owner's Light by order of the Trinity House, 1794.3. (235 x 125 mm.) entitled Dartmouth, with a Scale of half a Mile 1/2 [= 45 mm.].4. (175 x 175 mm.) entitled Falmouth, with a scale of One Mile [= 30 mm.].5. (175 x 165 mm.) entitled Plymouth, with a scale of One Mile [= 30 mm.].6. (315 x 192 mm.) entitled Downs and Margate, with a Scale of Miles 3 [= 41 mm].1,890 x 775mm