The Sun.
London, England, 1850-06-20 00:00:00

NAVAL liy TELLI GENCE.

PEMBROKE I)oCXYARD, JUNE I.2=..—Tht. tuilowing is
a statement of the principal diatens :ions of the Liberty
sloop of war, which-wass.4dtin-dttictsr-r-fhis ckekxarri last
week:— rect. Inches.
tic•ngth over till ...
Ditto, between perpndiculars
Ditto, of keel, for tonnage ..,... 75 8
Extreme breadth
Ditto, for tonnage
Ditto, moulded
D.Tth of hold
Ifer burden is 427 tons, an7l.l„sho is I)l.,:rcei fur 16 guns.
She will be docked, copperetom4:l i mry-rigged for navi-
gation to 'Devonport without delay.
The AdLoiraity have issued a go; tetral order that no
officer of the Riyal Dockyard I3att ion shall be absent
from drill, unless on special 1-,ave ) f absence or in the
cvsnt of sickness; and even in the let ter ease a aut.:eon's
certificate must be producfql. The Cletlonel of the Batta-
lion mutst appear erne during the and ho alone can
issue leave of absence. From th ese regulations it is
evident that the Admiralty is desirous of these corps At-
taining the highest possible state of &..ciency.

APPOINTMENTS.

WOOLWICH, JUNE 19.—surgeon— —.Tames Wilson (b),
borne on the hooks of the Swam, P: tzubroke, fur service
is the Proloero steam packet, to Sh a 'rness dockyard.
The Light Hon. bir Eiancis T. B L-ing held a levee at
Whitehall to-day, end it was a,ttem le d by the following
officers:

Captains—Sir Henry John Leehey, li.LI, (1826); Jos.
O'Brien (1829), Willi is Pearce S: a nley (1838), .Toln
limekt•tt (1838), William B. Dubs( ,n (1841), and \Vll-
nal (1844),.1ate commondir ig the alig-on steam
frir,toe.
Commanders—William Longhorn s) (1814), Henry D.
Twyeden (1838), Thomas Stewart (1843), Melville G.
11. W. IZoss (1845), and J. Brown.
Lieutenants—William C. Burbidige (1815), George
Gaban (1815), Coast-guard ; Geo, R:tbbott (1826),
and Julian F. Slight (1842).
AssizAant-Surgeon—john Elliott (:1846).
The Garland steam-vessel, Lie ii tcount-Cornmonder
Wyide, having had her iepsirs co. x pleted at this port,
left Woolwich to-day for Dover to tu sume her duties as
a mail packet on that station.
The trials of Captain the Hon. Vi E. Fitzineurim's
and Messrs. Seaward's engines in the Miux stcani-Tessel
were concluded in tho basin at Wiac iwich on Al,,ntlay
last. Both engines were set to drive a :crew of similar
diameter and pitch at 210 revoluti on s per minute, fur
eleven hours. On the first trial Cep Cain Fitzarsurice's
engine consumed 121- inches of wrviet7 per hour, against
Messrs. Seaward's 8 inches; but on cribsequent occasions
Captain Fitzmaurica reduced the co n sumption of his en-
gine to 10 inches per hour, and h e expects to make a
still greater reduction in the engines, he may construct
in future. His engine is aclenowledgs, d to be on the real
dire:tt rotary principle, and differs f :om all others sub-
mitted at this yard in having no dori points, springs or
I,•aching. The engine tried was ric n dually of 10.horke
power, but equal to 14-horse real phewer, at 451bs. pres-
taut>, is little liable to be put out of order, and has ex-
cited creat interest amongst the nue serous naval officers
studying .team, and others, and engineers who have
witnessed its performance. A furt' ler series of experi-
ments will be made in the river to test its speed at the
measured mile, and capabilities far towing launches or
other vessels.