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; % 24 THOMPSON'S COAST PILOT. From the anchorage off Menomonee River to a point 3 miles west of Point Peninsular NEN 494 miles. There is'a detached shoal off the SE end of St. Martin's, bear- ing SbyW 24 miles distant, which has 8 to 12 feet water on it, One cable's length from this shoal you will find from 5 to 7 fathoms water, and will carry that water a long distance to the - northward. -- Bi POVERTY ISLAND CHANNEL. There is a good deep channel on both sides of Poverty Island. To enter the south channel keep midway between Poverty and the Gull Islands, and after passing Poverty Island haul up for Little Rock Island, keeping Big or Burnt Bluff closed in behind Little Rock Island. On this route you will pass over a shoal with 4 to 5 fathoms water on it. 'There are several patches of shoal water lying between this shoal and the North Gull or Gravely Isiand, so that by keeping. well to the northward you avoid all danger, To enter Green Bay by the north channel, open Poverty with Big Summer's Island, and run straight in, keeping Poverty best aboard ; thence for Little Rock Island, giving it a berth of 2 mile, and haul up for Burnt Bluff, which is 227 feet high. : The channel between Point Detour and Big Summer' s Island is difficult to run, being crooked and shallow, and requires a good , pilot, the depth of water being only 10 to 12 feet, and rocky, FROM CHICAGO TO GREEN BAY BY DEATH'S DOOR. From Chicago to Pilot Island Lighthouse N4E 245 miles; bring Plum Island Lighthouse to bear NW, and run through the passage, leaving Pilot Island to the starboard 2 mile; and when abreast of Plum Island, steer WNW, until you open Chamber's Island with the Door Bluff, 5 or 6 miles; thence WSW for the NW point of Chamber's Island, 18 miles; thence as directed for Long Tail Point. In running out through Death's Door, bound to the southward, steer out SE, leaving Plum Island and Pilot Island to port, at the distance of 2 to 1 mile. Run on this course until you shut in the Ship or Spider Islands with the point of the False Door; thence 84 W for Chicago.