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THOMPSON'S COAST PILOT. Variation of compass at Kelly's Island, 2° 18' E. There are two patches of rock NE from the NE end of Kelly' s Island, 'with 6 and 10 feet water on them. 'The first is 1 mile from the point, and the second, 13 miles. 25 to 30 feet water all round them. DETROIT RIVER TO MAUMEE BAY. From Bois Blanc Lighthouse S$3W 5 miles; thence SWbyS (on Turtle Island Lighthouse) 21 miles; thence SW4S 14 miles, | to the west channel. 4 DETROIT RIVER TO MONROE. From Bois Blanc Lighthouse S3W 54 miles; thence SWbyS (on Turtle Island Lighthouse) 8 miles; thence SW4W 10 miles, to Monrve Piers, passing within 3 mile of Stony Point. MONROE TO POINT PELEE. East 424 miles, passing 2 miles north of Middle Sister, 13 miles from the shoal N+H of North Harbor Island, and 3 mile north of the middle ground between Point Pelee Island and Point Pelee, : Variation of compass, 2° 18' E. De MONROE TO CLEVELAND--MIDDLE PASSAGE. ESELE 3643 miles, passing + mile north of North Bass Island, and between Middle Island and Point Pelee Island; and note that Middle Island can be passed in 6 to 7 fathoms water within + mile on either side; thence EbyS 53 miles to Cleveland. MONROE TO SANDUSKY BAY. 'SEbyE 40 miles, to abreast of Marble Head Lighthouse ; thence SSE 3 miles, to entrance to Sandusky Bay. MAUMEE BAY TO BANpyEEY BAY. From west channel NE4N 14 miles ; thence E3S 14 fee to 4+ mile south of West Sister Lighthouse ; thence SEbyE3E 24} miles, to abreast of Marble Head; thence SSH 3 miles to entrance to Sandusky Bay. MAUMEE BAY TO POINT PELEE, OC. W. ' From west channel NEN 14 miles ; thence ENE+E 29 miles,