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THOMPSON'S COAST PILOT. 159 ei and log-line, by which the ship's path is measured, and her rate of going ascertained. oe Log-board, on which are marked the transactions of the ship, which from thence are copied into the log-book every 24 hours. A long sea, a uniform motion of long waves. Look out, a watchful attention to some important object or event that is expected to arise. Thus persons on board of a ship are occasionally sta- tioned to look out for signals, other ships, for land, etc. To loom, to appear above the surface either of the sea or the land, or to appear larger than the real dimensions, and indistinctly; as a. distant object, a ship at sea, or a mountain. The ship looms large, or the land dooms high. -- Zo loose, to unfurl or cast loose any sail. To lower, to ease down gradually. : "Tuff?" the order to the steersman to put the helm towards the lee side of the ship, in order to sail nearer to the wind. Mast, the upright timber on which the yards and sails are set. Masted, having all her masts complete. Mend the servicé, put on more service. Megsenger, a small kind of cable, which being brought to the capstan and the cable by which the ship rides made fast to it, it purchases the anchor. To middle a rope, to double it into two equal parts. Midships. See Amidships. Mirage, an optical phenomenon, arising from an irregular refraction or reflection of the light near the horizon, by which it often happens, near the sea coast, that a ship, seen at a distance, appears as if painted in the sky, and not supported by the water. Sometimes the image of the ship is inverted. A similar effect is observed in sandy deserts, as in Egypt, where the blue light of the sky is reflected upwards from the heated sands, which makes the whole plain at a distance appear like a large lake, ant the ele- vated villages appear like islands in this lake. To miss stays, a ship is said to miss stays when her head will not fly up into the direction of the wind, in order to get her on the other tack. Mizzenmast, the mast which stands abaft, and from which its rigging and sails are named; as of the sails, mizzen, mizzen-topsail, etc., and so also are the other sails, etc., named from the other masts. Moor is to secure a ship with two anchors. Mooring, securing a ship in a particular station by chains or cables, which are either fastened to an adjacent shore or to anchors at the bottom. Mooring service, when a ship is moored, and rides at one cable's length, the mooring' service is that which is at the first splice. Mouse, a kind of ball or knob, wrought upon the collar of the -- Muster, to assemble. i