74 LAKE ERIE. water, a fixed white light of 10 seconds duration, followed by an eclipse of 10 seconds. Marks the inner entrance to channel on the extreme end of northwest bank. Buoy No. 32, N. E. by E. &% E., 3,200 feet. Maumee old outer range (front), N. %4 W., 1% miles Grass Point Buoy (No. 36).--Red spar buoy in 17 feet of water. Marks the west side of channel just inside the mouth of the river and below Grass Point. It stands in sandy bottom, about 15 feet from deep water. End of Ironville wharf, S. W. by S., 15/16 mile. Ironville Buoy.--Black spar buoy, No. 33, in 16 feet of water. On the east side of the river channel, 700 yards above Grass Point buoy, and just below the point where the Inner Beacon range crosses the east bank of channel. On the west side of river, one-half mile above this buoy, the outer piles of a ruined wharf show above water; these may be passed close to. End of Ironville wharf, S. W. % S., 3,800 feet. Manhattan Buoy, No. 36A.--Red spar, in 17 feet of water, on the westerly side of the channel in Maumee River, nearly opposite Manhattan Range Light-Station. Manhattan Range Front light-house, N. E. by N,, 2,600 feet. Pivot Pier of W. & L. E. R. R. Bridge, 5. W. 34 S., 5,500 feet. Manhattan Range Rear light-house, W. 5% N., 1,600 feet. Manhattan Range Light (Front).--A fixed red light, 6th order, visible 814 miles. Square, white enclosed pyramidal wooden tower. Stands on an artificial island, and, with the rear beacon, marks the middle line of the new straight channel. Maumee bay easterly range (rear) light-house, N. E. by E. % E., 4% miles. This light should not be approached nearer than 1% mile on the range line before turning into the Maumee River. Manhattan Range Light (Rear).--A fixed red light, 6th order, visible 81%4 miles. Light 53 feet above lake level. Square, white pyramidal wooden skeleton tower, upper part enclosed with green window shutters and an octagonal lantern with red roof, on a foundation of piers. Stands on the slope of river bank at Manhattan Point, North Toledo, and, with the front beacon, marks the middle line of the new straight channel. Man- hattan range (front), light-house, N. E. by E. &% E., 3,470 feet. Middle Ground Buoy.--Red spar buoy in 14 feet of water. Stands in clay bottom at the upper end and outer edge of the Middle ground; pass it to the eastward.. Along this stretch, flats with only 5 feet of water in places make out from the east bank, one-half to two-thirds way across the river. Draw pier of Pennsylvania Railroad bridge, S. W. 34 W., 7% mile. Draw pier of Wheeling & Lake Erie Railroad bridge, N. E. % E. Standing North Along the West Shore of Lake Erie, and into the Detroit River. Note.--Southwest gales lower the water at this end of the lake from 2 to 3 feet, and northeast gales raise it about as much. MONROE LIGHT-STATION.--A fixed red light, 4th order, visible 13 miles. White, square low tower on white dwelling, lantern black. On crib at outer end of north pier of entrance to the ship canal leading into the River Raisin, Michigan, 114 miles above its mouth. The crib is par- tially enclosed for the protection of the buildings. The 12-foot curve of the bottom lies about one-fourth mile outside the pierhead; best water is found by standing in in line with the straight (inner) section of the north pier (W. N. W. % W.). On this course 10 feet of water may be carried in. Width between piers, 200 feet at outer end, 100 feet inside. Sandy bottom between and outside the piers; north pier projects 140 feet beyond the south. Stony Point to the northward may be passed within one- fourth mile. Stony Point, N. E. 4% E., 4% miles. Detroit River light- house, N. E. 3% E., 12-2/5 miles. . Z