at
anchor, respectively. (See article 15 (_d_), (_e_), and last
paragraph.)

(_g_) In fog, mist, falling snow, or heavy rain storms drift-net
vessels attached to their nets, and vessels when trawling, dredging, or
fishing with any kind of dragnet, and vessels line fishing with their
lines out shall, if of 20 tons gross tonnage or upward, respectively, at
intervals of not more than one minute make a blast--if steam vessels,
with the whistle or siren, and if sailing vessels, with the fog
horn--each blast to be followed by ringing the bell.

(_h_) Sailing vessels or boats fishing with nets or lines or trawls
when under way shall in daytime indicate their occupation to an
approaching vessel by displaying a basket or other efficient signal
where it can best be seen.

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. 10. A vessel which is being overtaken by another shall show from
her stern to such last-mentioned vessel a white light or a flare-up
light.

The white light required to be shown by this article may be fixed
and carried in a lantern, but in such case the lantern shall be so
constructed, fitted, and screened that it shall throw an unbroken light
over an arc of the horizon of 12 points of the compass--namely, for 6
points from right aft on each side of the vessel--so as to be visible at
a distance of at least 1 mile. Such light shall be carried as nearly as
practicable on the same level as the side lights.

ART. 11. A vessel under 150 feet in length when at anchor shall carry
forward, where it can best be seen, but at a height not exceeding 20
feet above the hull, a white light in a lantern so constructed as to
show a clear, uniform, and unbroken light visible all around the horizon
at a distance of at least 1 mile.

A vessel of 150 feet or upward in length when at anchor shall carry in
the forward part of the vessel, at a height of not less than 20 and not
exceeding 40 feet above the hull, one such light, and at or near the
stern of the vessel, and at such a height that it shall be not less than
15 feet lower than the forward light, another such light.

The length of a vessel shall be deemed to be the length appearing in her
certificate of registry.

A vessel aground in or near a fairway shall carry the above light or
lights an