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92 THOMPSON'S COAST PILOT. Head Lighthouse; thence SSE 3 miles, to entrance to Sandusky Bay. , | In case of heavy weather from the westward, run from Bois Blane Lighthouse SbyW 33 miles; thence SHz8S 37% miles, pass- ing within 7 of a mile SE of the East Sister Island, and } of a mile of the NE point of Kelly's Island; thence SsW 82 miles, to entrance to Sandusky Bay, leaving Middle Island 1% miles to the NE, and Gull Island and Shoal ? of a mile to the NE. Good anchorage under the island in 4 fathoms water, with the dock bearing north. Vari iation of compass at Kelly's Island, 2° 13' E. 'There are two patches of rock NE from the NE end of Kel- ' ly's Island, with 6 and 10 feet water on them. The first is 1 mile from the point, and the second, 12 miles. 25 to 80 feet water all round them. DETROIT RIVER TO MAUMEE BAY. From Bois Blane Lighthouse S?W 5 miles; thence SWbyS (on Turtle Island Lighthouse) 21 miles; thence SW¢S ld miles, to the west channel. : _ L. DETROIT RIVER TO MONROL, - From Bois Blane Lighthouse S?W 53 miles; thence SWbyS (on Turtle Island Lighthouse) 3 miles; thence SW3W 10 miles, to Monroe Piers, passing within } of a mile of Stony Point. MONROE TO POINT PELEE. East 423 miles, passing 2 miles north of Middle Sister, 12 miles from the shoal N$E of North Harbor Island, and ? of a mile north of the middle ground between Point Pelee Island and Point Pelee. | | Variation of compass, 2° 18' H. MONROE TO CLEVELAND--MIDDLE PASSAGE. ESEZE 863 miles, passing 4 a 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 3 a mile on either side; thence EbyS 53 miles to Cleveland.