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146 THOMPSON'S COAST PILOT. In addition to the surplus waters which Lake Huron receives through the Straits of Mackinac and the St. Mary's River from the north, it receives the waters of Saginaw River, and several other small streams from the west. This lake drains but a very small . section of country compared to its magnitude, while its depth is a matter of astonishment, being from 100 to 750 feet, according to -- recent surveys; altitude above the ocean, 574 feet, being 26 feet below the surface of Lake Superior. Its outlet, the St. Clair River, does not seem to be much larger than the St. Mary's River, its prin- cipal inlet, thus leaving nearly allits other waters falling in the das, to pass off by evaporation. On entering the St. Clair River, at Fort Gratiot, after passing over the Upper Lakes, the beholder is surprised to find all these accumulated waters compressed down to a width of about 1,000 feet, the depth varying from 20 to 60 feet, with a strong downward current. The Straits of Mackinac, connecting Lakes Huron a Michigan, is a highly interesting body of water, embosoming several pictur- esque islands, with beautiful headlands along its shores. It varies in width from 5 to 30 miles, from mainland: to mainland, and may be said to be from 30 to 40 miles in length. Here are good fishing grounds, as well as at several other points on Lake Huron and Georgian Bay. The climate of Lake Huron and its hanes is perceptibly warmer than Lake Superior during the spring, summer, and autumn months, while the winter season is usually rendered extremely cold from the prevalence of northerly winds passing. over its exposed surface. On the 30th of July, 1864, at 8 a.m., the temperature of -- the air near the middle of Lake Huron, was 64° Fahr., the water on the surface 52° and at the bottom, 50 fathoms (300 feet) 42° Fahr. GODERICH, 0. W.; One hundred and sixty-three miles distant from Buffalo, by railroad route, is advantageously situated on the east shore of Lake Huron, enjoying a healthy and delightful climate. Here is a good and secure harbor, being easily accessible to the largest steamers and sail vessels navigating the Upper Lakes. Here is erected an extensive railroad depot, warehouses, grain elevator and wharves, owned by the Buffalo and Lake Huron Railway Company. 'The town is beautifully situa-