The Sun.
London, England, 1852-09-15 00:00:00

APPOINTMENTS.

Lieutenants—Thomas J. R. Barrow (1843), to the
Queen, 116, at Devonport; Herbert L. Griffiths (1842),
from the Coast Guard, to be agent iu charge of mails in
a contract steam-vessel; George T. C. Smith (1842), to
command the Dee steam-vessel, commissioned this day
at Woolwich; Robert G. Craigie (1848), from the Ama•
zon, on the East Indian station, to the Termagant steam-
frigate at Portsmouth, expe2' d to proceed to the East
India station; John E. Montpmerie (1848), to the En-
counter. 14, steam-sloop, at Portsmouth; Charles Stir-
ling (1852), to the Encounter.
Master—John Scott (1846), to the Encounter.
Paymasters—James B. Moorman (1846), to the En-
counter; Henry S. Gibson (1846), to the Hercules emi-
gration ship, fitting at Chatham ihr the conveyance of
emigrants to Australia.

Master's Assistant—Percy W. East, to th© Encounter.
Midshipmen—John Gilley, El. T. F. Campbell, and
Augnstus Law, to the Encounter.
Clerk—Luke Mastercnan (1846), to the Dee steam-
vessel.

Gunner—James S. Pardon, to the Encounter.

Boatswain—John H. Johns, to the Encounter.

Carpenters—John Brown, to the Encounter; Wil-
liam Cornish to the Highflyer stcam•sloop, at Portsmouth

THE DUBLIN EXHIBITION OF 1853.

The site of the Exhibition presents a very animated
and interesting scene just at this moment. At its
northern and western sides about eighty sawyers are
actively engaged in cut 'lig portions of the larga supply
of timber Mundy carted to the lawn. The centre of
the site is occupied by platforms, upon which the ribs of
the centre and side halls are being made by a numerous
body of carpenters.
Three of the ribs for the aide halls have been com-
pleted, the construction of which is most ingenious.
They consist of laminae of irregular lengths, averaging
tut feet, the abutting joints being so arranged that no
two in the rib come opposite each other, by which great
uniformity of strength is obtained.
The whole rib consists of ten thicknesses, ranging
from one inch and a half. These are secured together
by inch and inch three-quarter screws, according to the
thickness of the lamina.
_ .

The weight of the timber in each rib is about 28 cwt.,
and about 1,200 screws are used in its construction. On
a platform on a portion of the space to be occupied by
the centre hall, one of the larger ribs has been chalked
out. Its span is 100 feet, and it will weigh nearly six
tone.

Upon reference to the dimensions of the transept of
the Great Exhibition, we find that the height to the top
was 107 feet, its breadth 72 feet, and its extreme length
from north to south 408 feet.

The centre hall of the Exhibition will be within three
feet as high, 28 foot wider, and about 17 feet longer.
The whole breadth occupied by the three halls will be
about 300 feet
Towards the end of the month some of the metal pil-
lars will be cast and placed on the stone foundation,
which we perceive has ben raised to the required level.s

The railway from Charleroi, in Belgium, to Erque-
lines, on the French frontier, is now completed. The direc-
tors of the company went along the line a few deys ago, in
a train drawn by an English locomotive, constructed on the
new system of having two boiler&