The Sun.
London, England, 1841-01-07 00:00:00

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HAMBUItGII MAIL.

HAMBURGII, DEC. 31.—The number of merchant-
men, large and small, that arrived in this port last year
was 2,484—0 f which 1,038 were from Great Britain,
191 from France, and 367 from Holland and East
Friesland.

HANOVER, DEC. 21.—The Crown Prince has re-
covered from his indisposition, which we hear was an
inflammation in the eyes, but does not yet leave his room.
The Liepsic Allgemcine Zeitung has a letter from
Aschasleben, of the 18th December, which says that
the great sugar house of Messrs. Zucksctroudt and
Benchel, in Magdeburg, was burnt to the ground. The
loss is estimated at 200,000 dollars. The greater part
is insured at London, Gotha, and Cologne.
BERLIN, DEC. 25.—(From a letter.)—The proposal
which has been frequently mentioned by the journals,
to have the Sunday observed in the same quiet manner
as in England, and particularly to prohibit music in the
public-houses, has been rejected, as was to be expected.
ST. PETERSBURGII, DEc. 24.—The Marquis of Clan-
ricarde arrived here on the 18th. .

The Russian Papers publish an imperial rescript
of Nor. 29, conferring the order of St. George of the
Second Class on Admiral Stopford.
BERLIN, DEC. 31.—Prussia has just sustained a
great loss by the death of Dr. Wilkie, Chief Librarian
and Professor, the author of several valuable works.
It is not unlikely that he may be succeeded by Dr.
Jacob Gumon.—Hamburgh Papers, Jan. 1.

HAMBURG BORSENHALLE, JAN. 1.
Bills. Money
Austrian 5 per Cents.
Bank shares 1575
Anglo.ltussian Loan lO5 101%
Russian 5 per Cent. Ist series, Certificate
Inscription, Ist Se:ies lO3
Russian 5 per Cent. Hopc and Co. 3d and 4th
Series . 96% 95%
Ditto in Certificates
Dutch Actual Debt, 2% pe Cent 48%
Ditto 5 per Cent —
Polish Bonds
New ticket
Anglo.Oanish Loan, 3 per Cent l3 73%
Norwegian Loan, 1534, 4 per C.0t...
Spanish, New 3 per Cents. —.
EXCHANGES ON LONDON.
HAMBURG, JAN. 1.-13 3%.—Two months, 13 1%.
PETERSBUSGH, Dec. 22.-.lwo months, 39,4 pence.
S Aics HOLM, I)ec. 24.—Seventy-tive days, 11. 4J.
CHRISTIANIA, Dec. 23 —Three months, 4 58.
LA.KLIN, DEc 2 —Three months, 6. 1(114.

Major-General Sir Howard Elphinstone, begs
to say that the Spectacles he has now had some time in
use, have fully redeemed the assurance of the Messrs. S.
and B Solomons as to their excellence, and having found
so much comfort and advantage from their use far prefer-
able to every other kind of Glasses which he has been in
the constant habit of making use of for a great number of
years ; he, therefore, feels a pleasure in recommending
them to his friends. 13, Norfolk-street, Park-lane, the 6th
November, 1840 . Messrs. Solomons, 39, Albemarle- street,
Piccadilly, opposite the York Hotel, and 76, King Wil-
liam-street, Bank of England, state that immediately
those newly- invented Spectacles aro placed before imper-
fect vision, every object becomes clear and distinct, and
the most minute particle is seen with distinctness, so that
the most aged imperfect sight becomes bright and brilliant,
and is brought to its youthful, natural, and original state.
Their Invisible Operative Voice Conductor, for ueaf per-
sons, is not the least perceptible nor more uncomfortable
than having a piece of wool in its place ; they give imme-
diate relief to old standing extreme cases of deafness.
These valuable inventions have also gained the patronage
of the Royal Family, and the unqualified approbation of
above four hundred of the principal members of the medi-
cal profession, and numerous individuals of high distine•
tion, who have been greatly benefited by their use. No
connection with persons of the same name. 39, Albe-
marle-street, opposite the York Hotel, and 76, King Wil-
liam-street, Bank of England.
APPARATUS FOR PREVENTING THE EXPLO-
SION OF STEAM 13011..ERS.—The frequent explosion of
steam-boilers, caused in many instances by the steam being
confined until it acquires a density greater than the boiler
can resist, has led to the invention of a self-acting appara-
tus, intended to warn the engineer whenever the pressure
exceeds the proper degree of safety. The apparatus is
constructed on the principle that steam, in proportion to its
density, will support a column of water, or mercury, of a
given height, and that any fluid will find the same level in
two or more vessels, provided there be a free communica-
tion between them. It may be called a mercurial safety-
valve, and consists of a cylinder, within which are two cups,
with two pipes dipping into them of a length proportioned
to the pressure of the steam ; these pipes aro connected
at the top with two valves on one spindle, so arranged, as
that_ when one is open the other must be closed. On
the top is a waste steam-pipe open to the atmosphere.
One pipe being filled with mercury, and the valve con-
nected with it being open, the mercury remains sta-
tionary until the pressure of the steam exceeds its proper
point.
It will then be blown out and fall into the empty
cup, allowing the steam to escape by the. waste pipe, and
giving warning to the engineer by Its noise. When the
pressure is again reduced to its proper point the valve is
reversed, and the mercury will, on the next occasion of
an increase of pressure, be blown hack again, still giving
warning oa the other side.—Herald.