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THOMPSON'S COAST PILOT. 129 port in one district from or at a port in an adjoining district, and between the ports of entry thereof touching at interme- diate foreign ports, shall be exempted trom the payment of entrance fees. & FOG HORN, AS RECOMMENDED BY COMMITTEE LAKE UNDERWRITERS. , (These Rules, if properly followed, would save a great many collisions, lives and property.) When a vessel is sailing on the larboard tack, wind abeam or forward of abeam, sound one distinct blast from the horn, at sufficient intervals to be understood. When on the starboard tack, wind abeam or forward of abeam, éwo distinct blasts. When the wind is abatt the beam to four points of abeam on starboard side, sound three distinct blasts. When further aft on either quarter to dead aft, sound four distinct blasts. When abaft the beam on the larboard side to four points of abeam, sound five distinct blasts. NOTES AND REMARKS ON THE BAROMETER. -- When the mercury falls in the barometer it announces rain or wind, or in general what is called bad weather; and, on the contrary, when it rises, it announces fair weather. | When the mercury falls in frosty weather, either snow or a - thaw may be expected; but if it rises in the winter, with a north or east wind, it generally betokens frost. If the mercury sinks slowly, we may expect rain, which will probably be of some continuance; but if it rises gradually, we may expect fine weather that will be lasting. When the barometer is fluctuating, rising and falling sud- denly, the weather may be expected like it--changeable. When the mercury falls very low, there will be much rain; but if its fallis low and sudden, a high wind frequently follows. When an extraordinary fall of the mercury happens, without any remarkable change near at hand, there is some probability of a storm at a distance.