"ART. 7. Steam vessels of less than 40 and vessels under oars or sails of less than 20 tons gross tonnage, respectively, and rowing boats, when under way, shall not be required to carry the lights mentioned in article 2 (a), (b), and (c), but if they do not carry them they shall be provided with the following lights:
"First. Steam vessels of less than 40 tons shall carry—
"(a) In the fore part of the vessel or on or in front of the funnel where it can best be seen, and at a height above the gunwale of not less than 9 feet, a bright white light constructed and fixed as prescribed in article 2 (a) and of such a character as to be visible at a distance of at least 2 miles.
"(b) Green and red side lights constructed and fixed as prescribed in article 2 (b) and (c) and of such a character as to be visible at a distance of at least 1 mile, or a combined lantern showing a green light and a red light from right ahead to 2 points abaft the beam on their respective sides. Such lanterns shall be carried not less than 3 feet below the white light.
"Second. Small steamboats, such as are carried by seagoing vessels, may carry the white light at a less height than 9 feet above the gunwale, but it shall be carried above the combined lantern mentioned in subdivision 1 (b).
"Third. Vessels under oars or sails of less than 20 tons shall have ready at hand a lantern with a green glass on one side and a red glass on the other, which on the approach of or to other vessels shall be exhibited, in sufficient time to prevent collision, so that the green light shall not be seen on the port side nor the red light on the starboard side.
"Fourth. Rowing boats, whether under oars or sail, shall have ready at hand a lantern showing a white light, which shall be temporarily exhibited in sufficient time to prevent collision.
"The vessels referred to in this article shall not be obliged to carry the lights prescribed by article 4 (a) and article 11, last paragraph."
That article 9 be hereby repealed.
That article 21 be amended to read as follows: