se, and shall on the
approach of or to other vessels be exhibited on their respective sides,
in sufficient time to prevent collision, in such manner as to make them
most visible and so that the green light shall not be seen on the port
side nor the red light on the starboard side, nor, if practicable, more
than 2 points abaft the beam on their respective sides.

To make the use of these portable lights more certain and easy the
lanterns containing them shall each be painted outside with the color of
the light they respectively contain and shall be provided with proper
screens.

ART. 7. Steam vessels of less than 40 and vessels under oars or sails of
less than 20 tons gross tonnage, respectively, when under way shall not
be obliged 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.

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.

ART. 8. P