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58 LAKE ERIE. of North Bass island, when steer N. W. by N. § N. 14% miles to a point 1 mile N. by E. from Detroit River light and in range with Bois Blane light. Middle Passage to Put-in-Bay.--When } mile south of Middle Island light steer W. 4 N. 54 miles to a point 4 mile north of Ballast island, thence 8. W. 24 miles to the dock in Put-in-Bay. Put-in-Bay to Bar Point.--When 4 mile east of Gibraltar island steer N. W. by N. 294 miles to.a point N. by E. 1 mile from Detroit River light, and in range with Bois Blanc Island light. This course leads north of Middle island 4 of a mile. Put-in-Bay to Entrance to Maumee Bay.--When close to the east side of Gibraltar island steer N. N. W.4 W. 4¢ mile to clear Peach Orchard buoy, when steer W. by N. §N. 293 miles to a point 1 miles N. E. by N. 4 N. from Turtle Island light, passing 1 mile south of West Sister Island light. Bar Point to Pelee Spit.--When 4 mile N. by E. from Detroit River light and in range with Bois Blanc light, steer E. by S. 2S., passing + mile south of Bar Point red buoy, and 1 mile north of Colchester Reef light-house, 343 miles to a point 1} miles south of the Spit light. Huron to Marblehead.--When 1 mile north of Pierhead light steer N. W. 2 N. 13 miles to a point 14 miles north of Marble- head, when see course from Sandusky to Green island. Huron to Black River.--When 1 mile north of Pierhead light steer E. by N. 2 N. 194 miles toa point 1 mile north of Black River light. Detroit River Light to Monroe.--When 4 mile south of Detroit River light steer S. W. 4 W. 114 miles to a point 1 mile east of Monroe light, passing close to Stony point. Magnetic Declinations in degrees and tenths, corrected to the year 1880: DUCHIO. 6) oa eR pO pee 45.2 WW. For Colborhe..).. 1.18, hes 1 a fe A°-1 W. hone Pointer. sig. ee ee ie ped WO eee ee a 26 Wairport 36 ....5 2 2s Cleveland... 6.00 oe ee a 1°33 Black River. -.. .; ee ee 0°.1 Cedar Point... = 6s... a a kee Pelee giant... 225.70. oe a, O° 1 Kelley's 'Island. 0.709 ey 0°.5 Téled0;). 6. a, ee 0°.4 MM PSVille. c.f cies ee i ee a oe v0 4 ois Blanc island... 6 ee a 0°.2 Hebe saaS