In England, wheneyer a light-vessel or other craft is anchored to mark ibe
position of a wreck, the top-sides will be coloured green, and she will be foribsr
distinguished by day, by three balls placed on a yard 20 feet aboye the sea, two
balls (vertically) on the side' on which navigating vessels may safrly pau
and one on the other ; and by night, by three fixed white lights similarly arranged
and with the same meaning. These marking yessels, when so employed and
fitted, will not show the ordSinaiy riding light.
Note. — The firing special rockets (of little sound but of great brilliancy) immediately
after a gun from a light-vessel will denote the need of assistance from the shore ; rode
lighthouses are also supplied with the special call rockets, for use when assistanee is
required from the shore.
SOUNDINGS OFF THE HEADLANDS IN THE
ENGLISH CHANNEL IN FATHOMS.
Stand in. Stand off,

Bcilly 46 55

Lizard 40 50

Start 36 40

Portland 25 35

St. Catherine's Point .... SO 35

BeachyHead 16 25

Dungeness 20 22

South Foreland 12 20

On the parallel of the Bishop's Bock, and 20 miles to the westward of it, the sound'
ings are about 60 fathoms, mud and oaze. Close to the Bishop about 40 fathoms^
sand. To the northward of Scilly the soundings are about 50 fathoms, sand; 20 milei
to the westward the soundings are about 60 fiathoms, mud and oaze.
