ae LAKE MICHIGAN. © The Harbor improvements consist of two piers connecting the mouth of the Sheboygan river with the deep water in Lake Michigan, and a dredged channel between them, and deepening the river inside the piers. The north pier projects 1,725 feet into the lake from the shore line, and 50 feet beyond the south pier. As regards the depth of water in the channel, no reliable information can be given. The Life Saving Station is in the harbor on the east side. Direction of the piers, east, their width increases from 190 feet at the shore line to 255 at their outer ends. - : Sheboygan Reef (south end).--Red, 3d class can buoy in 24 feet of water. Off the south end of Sheboygan reef, the center of which lies N. E. 2 N., seven-eighths of a mile from Sheboygan Pier light. The reef is 600 yards in extent, north and south, with 7 feet of water on its shoalest part. There is a narrow passage-way about 300 yards wide, between the reef and the land, but this should not be attempted by strangers. Sheboygan Pier light, S. W. 8 W., 1,400 yards. Sheboygan light-house, _ N. W. £N., five-eighths of a mile. Sheboygan Reef (north end).--Red, 3d class can buoy in 24 feet of water. Off the northeast end of Sheboygan reef. Least depth of water between the buoys, 7 feet. Sheboygan light-house, W. N. W. 4 W., 800 yards. SHEBOYGAN LIGHT-STATION.--A fixed white light, 5th order, visible 16 miles. Lantern on white dwelling, 34 feet high. On a point 1 mile to the northward of the entrance into Sheboygan river, Wisconsin. | Linzville, 8} miles N. by W. 4 W. from Sheboygan light, has a pile pier extending into deep water. Centerville, 104 miles N. by W. from Sheboygan light, has two pile piers. 3 _ Yorkville, 123 miles N. § W. from Sheboygan light, has two pile piers. pile piers. : There are many shoals and rocky spots along the shore, from Sheboy- gan to the south point of Manitowoc bay, rendering navigation dangerous within three-fourths to seven-eighths of a mile from shore, particularly in the vicinity of Yorkville and Centerville. Outside in from 4 to 5 fathoms the bottom is generally clay with a light covering of sand. Manitowoc Pierhead Beacon-Light.--A fixed red light, 6th order, visible 84 miles. White, open framework tower, 29 feet high. Near the end of the north pier, at the entrance into Manitowoc river. Width between piers, 250 feet. The old light-house is in the town of Manitowoc, near the inner end of the north pier. The fog-signal is a 10-inch steam whistle, and during thick and foggy weather sounds blasts of 8 seconds, silent interval 12 seconds; blast 8 seconds, silent interval 12 seconds; blast 6 seconds, silent interval 24 seconds. Fog signal house on outer end of breakwater. Twin River Point light-house, N. E. § N., 10% miles. Manitowoc Breakwater Light.--A fixed red lens-lantern light, 34 feet. above lake level, shown from southeast gable of fog signal house on the southeast. end of the breakwater at the entrance to harbor. The Harbor Improvements consist of two piers, with a dredged channel connecting the mouth of the Manitowoc river with the deep water of Lake Michigan. They are 228 feet apart at the shore line and 250 at the outer end; direction, E.4.N. Depth of water: In May, 1891, there was 16 feet at the Nordheim, 152 miles N. } W. from Sheboygan light, has two