The following text may have been generated by Optical Character Recognition, with varying degrees of accuracy. Reader beware!

THOMPSON'S COAST PILOT. 89 - COURSES AND DISTANCES ON LAKE ST. CLAIR. Run out from the head of Detroit River into Lake St. Clair ENE 3 miles; thence NNE 18 miles, to Point Huron Stake, | which leave to port; thence NbyE 5 miles, with New Balti- more right ahead, to the turning stake (red) to starboard ; thence to the stakes on the flats; range the first four stakes and run up, leaving all_ the red stakes to starboard and black to port (if there are any), until in St. Clair River, north channel. (No stakes in this channel since 1860.) 'Clinton River Lighthouse bears from the stakes at the entrance of the flats SWby WW, and is the leading mark from the stakes bound down. SAILING DIRECTIONS FOR LAKE ST. CLAIR--TO ENTER 8T. CLAIR RIVER BY THE SOUTH PASS OR CHANNEL. . To enter St. Clair River by the South Pass or channel, run out of Detroit River ENE until the two first points north of the Lighthouse are open; thence NE%N 20 miles, till you make the South Pass Lighthouse, when in 15 feet water, bring the Lighthouse and beacon light in range, steer up on this range, - passing black buoys to port, and red buoys to starboard, till up to beacon light; thence haul off to the SE and leave red buoys to starboard and black to port, until into the river. There are range lights kept on the starboard hand, opposite the turning point into the river, and are thus: red and white for each bend or reach, first from the beacon light to abreast the point, and - then up the river, and vice versa. The lights stand in an angular direction, the middle one being red, which form the two ranges. After clearing the flats and into the river, keep the port side best aboard until up to the head of Hurson's Island; then keep in mid-channel until the two log houses on the Canada shore are in range; thence across the river to Algonac, to clear the shoal which makes up river from the head of the island. The new cut or channel over the St. Clair Flats runs in a line with the first reach of St. Clair River S40°W. Two Light- houses will be erected on the port side of the cut, to mark the channel. This improvement will be of incalculable benefit to _ the sailing community, also to merchants and owners of vessels.