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40 THOMPSON'S COAST PILOT. Norz.--In running across the Lake, from Milwaukee to Grand Haven, the course is E4N, and the return course WbyS3S. These courses were run by the " Milwaukee" steamship tor three weeks in April, 1860. The compass is more affected going west than east. Also, the courses from and to Chicago are sim- ilar, being NEN to Grand Haven, and SWbyssS to Chicago. The compass being attracted to the eastward, the variation must be allowed to the left, instead of the right hand. Port Washington light, fixed, visible 9 miles, at Port Wash- ington, 25 miles north of Milwaukee; has a good pier, with wood. This port lies well into the bay, and has often been mistaken for Milwaukee Bay, before the light was on the point at Milwaukee. 'The anchorage is not good. Sheboygan light, fixed, visible 11 miles, at Sheboygan River, 25 miles north of Port Washington. The Lighthouse stands on the north bluff. To enter the river, range the north pier, and run in nothing less than 10 feet. There is one open pier, to the southward of the harbor; and Kirkland's large white warehouse stands just at the first turn of the river, on the port side. There is a reef off north bluff with 8 feet water on it. The water is shoal to the southward of the south dock. é Manitowoc light, at the mouth of Manitowoe River, fixed, varied by flashes; visible 11 miles. Open piers. Lumber and firewood. Twenty-two miles north of Sheboygan. Good hold- "ing ground in 6 to 7 fathoms water. Twin Rivers, 7 miles north of Manitowoc. Open piers. Wood and lumber. 3 _ Twin River Point. It is now proposed to renew the light on Twin River Point, a light which was always a prominent lead- ing one. Coming from the Manitou Islands, no light was more useful than this for propellers and steamers calling at all the way ports on the west shore. Kewaunee, 21 miles north of Twin Rivers. Open piers. Wood and lumber. Bayley's Harbor. This light is to be discontinued, and a Lighthouse to be built on Cannah Island, 3 miles west. Ranges are to be erected for entering Bayley's Harbor. The new light on Cannah Island will be of great service for coasting, and a leading light for North Bay, where ranges will also be stationed. There is good holding ground in any part of the bay and abreast