The Liverpool Standard and General Commercial Advertiser.
Liverpool, Merseyside, England, 1851-12-30 00:00:00

spare during the whole of the time, and worked most of
it with the furnace doors only half closed. Her wheel is
19 feet in diameter ; and she carries 90 tons of coal in the

engine-room. The nominal power of the two engines is
120 horse ; and, with water in the boilers, their weight
does not exceed 15 cwt. per horse power. This is attri-

butable to the mode of fixing, which can only be adopte-
in iron built vessels. The working parts are of wrought
iron ; they are bedded upon the iron kelsall of the ship,
and the frames built in upon the iron beams of the ship,
thus saving all necessity of stays, and at the same time,
from tha rigidity of the beams to which they are attaches,

producing less vibration than we ever experienced in any
other steamer. In appearance below the engines resemble
more the skeleton movement of a watch, as compared
with one of the old cumbrous construction, than anything
else we can liken them to. The vacuum of the condenser
is from 271 to 28 inches.

The Clarence started on her trial trip from her moor-
ings in the Sloyne about 10.30; and proceeded down tne
river, part of the time at half speed, to the Rock Light-
house, which we passed at 56 minutes past 10. From this
point her time was as follows

Crosby Lightship.
Formby Lightship
Bell Buoy

11 36
11 56

a distance of nine knots and two-thirds in an
hour, with an adverse tide of a knot and a half part of the
trip, equal to a performance of 121 to 13 miles an hour.
n_ll .

making

r rom me neii-buoy she steamed to the north-west Light.
ship, three and three-quarter knots in 20 minutes. Tin
course was gone back again in about the same time ; anc
again to the Light-ship in a little under the 20 minutes

making the mean speed upon the three trips of 13 miles
per hour. It must be taken into consideration, that the
vessel, whilst achieving so gratifying a result to both her

owners, her builders, and the constructors of her engines,
was not at all in the state in which she is intended to sail
when arrived at her destined location, t
heavily sparred for the voyage out,
which she will have to make under sail
to port it was determined to try her speed against some of

leing at preset'

the greater part of
Before returning

our inward bound steamers

ducer can onl

sovereig

claims of government by to
produce as he did thirty years since. Thus by the no
nalism of money—for if he paid his taxes in kind, as
the case in primitive times, this could. not hapPe
be finds the real burthen of taxation doubled.-44
M`Donald's England's Dilemma.
LAUNCH OF THE ROYAL MAIL STEAM-SF"
MAR
—On Wednesday last one of the new and splendid eta
ships belonging to the British and North American (
pany's line, which have been in course of built'
Greenock for some months past, was launched in t

which to P

ig to m

sence of a vast concourse of spectators. She —aka
Arabia, and will be commanded by Captain Ju
of the Asia, the veteran commodore
North American fleet of steam-ships. t 1 b
feet ;- hurthen upwards of 2400 tons ;
2p with engines of 1000-horse pow(
.ide levers, of the largest size, w
ler% ping 103 inches in anu:riv

of the
Her lery4..
The will be
, engine
believe. 0.-

be two se