The Sun.
London, England, 1851-06-28 00:00:00

INAVAL INTELLIGENCE.
Captain George Ro 'ney Mundy has been appointed •
flag captain to Vice-Admiral the lion. J. Percy, C. 8.,
ac Sheerness. It is understood that Mr. Smith, the se-
cretary to the ex-Commander-in Chief, will remain us
I secretary. The London, 92, will supersede the Ocean
I on the Ist of July as the flag-ship; the Ocean will be
paid off on the 30th inst.
C3plain Chads, C. 8., pays off the Excellent at Ports-
mouth, on the 30th inst., and on the Ist of July cora-
-1 , rais.ioas her with the same complement. Commander
Sir IV. S. Wiseman, Bart., Commander Jerningham, and
ail the lieutenants and other officers will be re-appointed.
kepTtnebyanntiiiv,ersary of her Majesty's coronation will be
dockyard to day; the public (Afters will
have their usual holiday, but the Portsmouth people will
keep holiday on Monday next, Saturday being the mar-
ket-day. The ships and troops will fire the customary
salute at noon.
Clerk—John J. Stevens has been appointed to the
Prince Regent, 92, at Lisbon.
Master's Assistant—Henry C. Sedmon to the Impreg-
nable, flog-ship, Devonport.
actCinagr.penter—William Greensell, of the Arrogant, to be
Adder steam-tender, with seamen paid off from the
Wellesley, at Chatham, arrived at Devonport on Wed-
nesday, took in coals, and sailed again on Thursday, on
her return.
Avon steam-tender, which sailed with seamen and
marines paid off from the Caledonia on Tuesday evening,
rcturnad to Devonport on Thursday morning
Sidon steam-frigate, Commander Gardner, was taken
into dock on Thursday, and her copper where the" hog"
could not touch was very much covered with weeds.
She was scrubbed and taken out the following tide.
She and the Retribution go out of harbour at ten
o'clock, and will probably proceed on to Cork with-
out anchoring at Spithead. Our correspondent says--
" Sir Charles Napier has (I understand) the Bee
steamer, Second Master-Commander Alfred Messum,
placed at his disposal; for he will probably go outside the
Nab in the Sidon, and return back in the Bee. He has
been inspecting his pet ship, and is no doubt glad to see
her in commission. She will beat the Retribution in
every way; and by herself would make the passage out
in four or five days less than the latter ungainly vessel,
as she is of great horse power and less tonnage; but
they will be obliged to keep company, so as to bo able to
assist each other in case of breaking down.''
Vengeance, 84, Captain Lord Edward Russell, exer-
cised firing live shells and shot at a target on Wednes-
day last, and yesterday was exercising her large guns
with blank cartridge. She has practised firing salvos of
eight guns at a time at fixed intervals, &c.
Thu Portsmouth Dockyard Boat Brigade, under com-
mand of Major Davis, master attendant of the Clarence-
yard, have been exercised in gunnery practice several
evenings daring the week, firing blank cartridges.
—...--._

THE NE IV AND WER,P STEAM-
SHIP, THE BARON OSY.
Yesterday this splendid iron steam-ship, recently
launched, went down the River on her trial trip, for the
purpose of testing her speed and capabilities. The vessel,
gaily decorated with the flags of Belgium and England,
started from her moorings, off Blackvvall precisely at
half-past twelve o'clock with a large and distinguished
party of visitors on board, among whom were Lord Bar-
riedale, Sir James Hamilton, Mr. and Miss Pratt, Mr.
Lawrell, M. Fleury, Belgian Minister of the Extereur,
and daughter; Mrs. Dalvey and Miss Gilbert, Captain
and Mrs. Lichfield, Mr. Scott Russell, Mr. Robinson,
the Baron Paradicini, Mr. and Mrs. Lightly, Captain
and Mrs. Cochlan, M. Clements, the Chevalier Schultz,
Dr. end Mrs. Payne, the Consul of Monte Video and
lady, Mrs. Townsend and niece, Dr. and Mrs. Row-
&e. _

The Baron Osy is about 600 tons burden, and has
engines of 220 horse-power. She belongs to the Ant-
werp Steam-packet Company, and is intended to ply
between Loudon and Antwerp, and from her superior
speed and peculiar build, it is fully anticipated that she
would make the trip between the two ports in 14 or 15
hours—leaving London in the afternoon, and arriving is
Antwerp early the next morning—so as to enable tra-
vellers to reach Cologne, on the Rhine, the same night.
The saloons and sleeping berths are fitted up with great
elegance and taste, the prevailing colours being those
employed in the decoration of the Exhibition building in
Hyde-park, by Mr. Owen Jones—namely, white, blue,
and yellow. The main saloon will dine with ease 150
passengers, and the numbor of berths is proportionally
large. When going at full speed her time, as taken by
a person on board employed for the purpose, was said
to be 15 2-3 knots an hour. Her motion is extremely
easy, and we have no doubt she will fully maintain the
reputation of the enterprising company to which she
belongs.
A very elegant dejeuner was provided on board for
the guests, who amounted to upwards of 200, and " The
health of the gallant Captain Jackson, and success to the
new steam-ship the Baron Osy," was drunk in flowing
bumpers of champagne. There was a quadrille band on
board, which contributed much to the pleasure and en-
joyment of the trip, and tempted many of the visitors to
take part in the quadrilles, polkas, &c., which beguiled
the short interval between the termination of the enter-
tainment and the arrival of the vessel at Blackwall.
Captain Jackson, the commander, was unremitting in
his attention to the comforts of his numerous guests
during the day, which was one of unmixed pleasure and
gratification to all who were present.

SEABORNE MAILS.
[N signifies that the mails are sent from the General Post-olnee
by the night—and 51 by the morning—dispatch.]