The Sun.
London, England, 1859-05-30 00:00:00

T.TIE NAVY.

The whole of the extra mechanics and labourers
ordered to be hired at Clotham Dockyard have
now been entered, and the utmost activity prevails
in all the departments and factories of that establish-
ment in hastening forwArd the completion of those
•vessels now building. In addition to the four new
ve;,,sels of war recently ordered by the Admiralty to
be ,Nvilt at that dockyard, directions have just
been iveeived by the heads of the establishment for
two mo.'e vessels to be immediately laid do`n on
the first rell;ps that become vacant. One these
vessels is to be a 91-gun line-of-battle screw steamer,
and the other a 51-gun steam frigate, but the names
have not yet been announced. The frames of the
four new vess. els ordered to be built have been. com-
menced ; they I. ve the Bulwark, 91, the Undaunted.
51, the Rattles.nake, 21, and the Reindeer, 17.
screw steamers.
The boilers for tl;'e. Charybdis, 21, screw corvette,
which is to be launci.'ed at Chatham Dockyard at
noon on Wednesday, 10ve arrived from the factory
of Messrs. Miller and Ray,lnh ill, the contractors, and
the Albatross, 12, at
rcl
have been deposited on boa.
Chatham, until the CharybAis .is read to receive

them.
The Rodney, 90, and Severn; .51, in dock at
Chatham, being converted into screw steamers, are
when completed to be attached to the second divi-
sion of the steam reserve at that port.
The Doris, 32, screw frigate, Capt. Ileatheote,
made her second trial of Griffiths' patent propeller
at the Measured mile, in Stokes Bay, on Trlday
evening, in charge of Capt. G. T. Gordon, Ora-
manding steam reserve, and under the superintend-
ence of Messrs. Dinnen, Murdoch, and Miller, the
Government officials. Mr. Griffiths, the patentee of
the propeller, was also on board during the trial.
The Doris's trial with this propeller on the 25th
inst. was made at its coarsest pitch, 32 feet. The
present trial was made at its finest pitch, 26 feet 5.
The mean of six rune at the measured mile gave a
speed of rather over 12 knots ; number of revolu-
tions of engines maximum, 58.5, mean, 58.253 pres-
sure of steam, 211b._; vacuum, 25. Although the
engines on this trial completed a revolution nearly
every second of time, the amount of vibration was
very small indeed. The next trial with the Grif-
fiths' propeller will be made with a "medium pitch."
It is also intended to give the Admiralty screw
another trial. The greatest speed attained by the
screw has been with the " leading" corner of each
blade cut off. In the forthcoming trial the op-
posite, or " falling" coTner of each blade, will be
cut off, the screw being restored to its usual form
in every other respect.
The beautiful manner in which the Doris's en-
gines have performed their wk.
Irk during these ex-
perimental trials has elicited the warmest admiration
from all who have had the oppontnnity of witness-
ing their action. The Doris steamed .into Portsmouth
harbour on Saturday morning and la:lded Griffiths'
propeller on the Sheer jetty in the Dockyard.
The Cressy, 80, screw steamship, Ca-pt. Hon. C.
J. B. Elliott, sailed from Spithead for the 'Westward
early on Saturday morning.
The Virago 6, paddle steamer, Com. M. B. Dunn,
sailed from Spithead for the westward on Saturday.
The Victoria and Albert royal steam yacht, Capt.
the Hon. J. Denman, is expected to leave Ports-
mouth early this morning for Gravesend, where sh.e
will embark H.R.H. Princess Frederick William t
and suite, on her Royal Highness's return from her
visit to this country to Berlin.
The lighter Hamoaze, J. Webber, master, from
Queenstown, arrived at Plymouth on Tuesday. The
lighter Devon, J. Rowett, master, from Pembroke,
and the lighter Tortoise, Lott, master, from Queens-
town, arrived on Wednesday.
The transport Diligence, E. Crook, master, with
provisions and stores, was towed out of Plymouth
Sound on Friday, and sailed for Pembr3ke., She has
a new patent gravity binnacle, invented by Mr. G.
Brown, of Deptford dockyard, the merits of
which are said to have been fully and satisfactorily
tested in some heavy gales which she encountered
on her passage from Deptford to Devonport.
The screw steam sloop Brisk, 16 guns, Capt. De
Horsey, was towed on Friday from Hamoaze into
Plymouth Sound, where she saluted the flag of
Port Admiral Sir B. Reynolds, K.C.8., with 15
guns.
The guardship in ordinary, Royal Adelaide, 104,
Capt. W. J. Williams, was taken out of the basin
at Keyham steamyard on Friday, and towed to the
sheer hulk. Her masts- and bowsprit were stepped
on Saturday, and she was placed at her moorings
in Hamoaze.
The screw steam gunvessel Intrepid, 6, Com-
mander Marryat, steamed from llamoaze into Ply-
mouth Sound on Saturday.
The paddlewheel surveying steamer Bann, Capt.
Williams, having had her bottom coated with com-
position, was out of dock at Devonport on Saturday.
) The lighter Duck, J. Weal master, with stores
from Chatham, arrived at Plymouth on Saturday.
Rear-Admiral Sir H. J. Leeke, K.H., K.C.8.,
visited Devonport Dockyard at noon on Saturday.
Twenty seamen from Hull arrived at Plymouth
on Friday, and were sent to the flagship Impreg-
nable, 104, Capt. W. H. Stewart, C.B. • 132 men
arrived by train on Saturday, to be entered various
ships fitting at that port.
Fifty-three shipwrights were entered in the De-
vonport Dockyard on Wednesday, and 10 joiners
on Saturday. The artisans employed on the screw
steamship St. George,9l, received orders on' Friday
to work from 5 a.m. to 8 p.m.
The convict ship Sultana was towed out of Ply-
mouth Sound on Saturday afternoon, and sailed
for Fremantle.
The engines ordered by the Admiralty from
Mbssrs. John Penn and Son for the new steam ram
are to be of I,2solnominal horse power, and are ex-
pected to work up to nearly 6,000 horse power
indicated.
The following appointments were made on Satur-
day at the Admiralty :—D. M'Carthy, Acting
Assistant-Surgeon, to the Emerald ; Master's
Assistants C. E. E. Peake, to the Emerald ; C. D.
Tregidge, to the Cadmus ; B. S. Bradley, to the
Intrepid ; Brock, to the Flying Fish •F. T.
Helby, to the Mersey ; and F. W. Jarrard, to the
P iont cr.