the starboard side, and a red light on the port side; such lanthorn to be so fixed as to show the white light from right ahead to two points on the bow on each side of the ship, the green light from two points on the starboard bow to four points abaft the beam on the starboard side, and the red light from two points on the port bow to four points abaft the beam on the port side; and (2) a white light in a globular lanthorn so constructed as to show a light all round the horizon; this lanthorn to be carried lower than the lanthorn showing the white, red, and green lights as aforesaid, so, however, that the vertical distance between them shall not be less than six feet nor more than twelve feet.
British sailing trawlers of 20 tons register or upwards, having their trawls in the water and not being stationary, shall carry and show the lights required by Article 5, or shall carry and show in lieu thereof, but not in addition thereto, the following lights:—On or in front of the fore-*mast-head a lanthorn having a green glass on the starboard side, and a red glass on the port side, so arranged that the red and green do not converge, and so as to show the green light from the right ahead to four points abaft the beam on the starboard side, and the red light from right ahead to four points abaft the beam on the port side; and (2) a white light in a globular lanthorn similar to that mentioned in the last paragraph as carried by the steam trawler, and similarly situated.
Or a white light in a globular lanthorn so constructed as to show a light all around the horizon, and visible on a dark night, with a clear atmosphere, for a distance of at least two miles; and also a sufficient supply of red pyrotechnic lights, which shall each burn for at least thirty seconds, and shall, when so burning, be visible for the same distance under the same conditions as the white light. The white light shall be shown from sunset to sunrise, and one of the red pyrotechnic lights shall be
