The Sun.
London, England, 1851-08-25 00:00:00

NAVIGABLE BALLOOVS.

The balloons made for M. Penn vt-re removed the day
before yesterday from the Paleis National, and will, in
the course of a few days, be placed over the immense
ear or WWI building in a 1 age piece of ground in the
Rue Marbeuf. This vessel is now so far advanced that
the spectator is able to form an idea of the plan on
which M. Petin hopes to render his balloon-vessel na-
vigable. The motive poser is on the screw principle,
worked by two small stesm•engines, and appears to be
fully equal to the purpose intended. The most remark-
able parts of the affair, however, are the leaves or wings
with which it is supposed the navigator will be able to
ascend or descend at will. If this apparatus should suc-
ceed, navigation in the air will be no problem, and will
be even less expensive than any other means of locomo-
tion, for the gas in the balloons will not be discharged,
as is now dune, but will remain in reservoirs, and if the
envelope be sound, and proper space be left for dilatation,
it may serve fur months. The balloons will be enclosed
within a framework, and so disposed as to offer no re-
sistance, but rather facilitate the progress of the vessel.
We understand that most of the scientific men who
have examined the vessel and the modes of navigation
proposed by M. Petin have signified their approbation
of his theory, but they have still doubts as to the prac-
tical results. The frame work of the vessel, which is
more than 200 feet in length, appeared to us to be too
slight to resist a violent storm, and a descent if sudden
would certainly demolish it; but if the inventor, who, it
is said, has devoted the whole of his fortune, should ob-
tain the results that he anticipates, he will be able so to
govern his vessel as to descend as gradually as he
pleases. It is said that, in about a fortnight, he will be
reedy for his first experiment.—Gafignani.

SEABORNE MAILS.
Di signifies that the malls are sent &ore the Genesi' Poet-era
by the night—and id by the morning—dispatch.]

When made up in From what
PLACES. General Post-office port dis- When
duo.
London. patched.
--.......
America (by Brit. pkt.) N Ang. 29 L. .. Itilrpeel • • Arrived
America (by U.S. pkt.) N Sept. 2 .. .. Liverpool ..
America (by U.S. pkt.) MiAug 27 .. .. Southampt. Ang. 31
Africa (West coast).. 1414th of the month Plymouth Sept. 6
Alexandria* • • ...... N 19th Bc. 30th of mo. Dover .. Aug. 26
Belgium .. .. .. NI Daily .. .. .. ;lover .. Daily
Brazil .. • .. M 9th of the month Southampt. Sep7. 16
Buenos Ayres •• .. 51 9th of the month Southampt. Sept. 16
California(viaChagres)M ki & 17th ot month Southampt. Sept. 5
i
Cape of Good Hope N 14th of month Plymouth.. Set t. 6
Constantinople* .... Ni7th 17th 27th of mo Dover .. Aug. 30
Central America .. M, td & 17th of mon. Southampt. Sei.t. 5
Channel Isles .. .. N Mon.. Wed.. & Fri. Southampt. Ta. Th•Sa
Chi. .. .. . M 17th of the month Southampt. Sept. S
France .. .. 52 & N Twice daily .. .. Dover • • rwicedak
Greece* .. .. .. Nl7th I7th 27th of mo Dover •• Aug 30
Elainciurgh .. .. N'Tuesday & Friday London .. Tues. Sat
Uolland .. •• .. M Wednes. & Satur. London .. Mok.Thr
Honduras .. .. N 17th of the mouth Southampt. Sept. 20
Ireland .. .. M.& N Twice flatly _ .. Holyhead .. Twiledatly
India (via Southamp.) 11,20 th of the month Southampt. Arrived
India (via M amines) N 7tha.24thefinonthiDover .• Sept. 1
Mediterranean (via
Southampton) •• M 20th of the month Southampt. Aug. 23
Vediterronean (via
Marseilles) .. .. N 7th& 24th ofrnonth Dover .. Sept. I
Mexico .. .. 5112d of the meaLti.. Southampt. 'Sept 5
Madeira
19 17th
lth,.th.27th
Malta* .. .. I } Dover Aug. 2$
& 30th of month
Naples* „ .. .. N 4tb 15th 25th ofme Dover .. Sept. 2
Papal States* .. .. N Ali 15th 25th of me Dover .. Se t. 2
rennuwar.. .. .. bf 7th 17th 27th of am Southampt. Arrived
Pero • • • • •• •• lid 27th of the month Isonthamet. Sept. 5
can
p_yis
.. .. .. N sth 15th 25th ofmo Dover .. ,Fept. 1
`West Indies .. 54 17th of the month Southaraptlsept. 20
West Indies (except i
Havana & Nassau) bt 2d of the month .. Sonthampt. Sept. 5

Ild of the month ..
°wanes thus marl
Woe

,goattianapt. !Sept. 5
Eed (') are conveyed b)

• The mails to those
French eacket Siareet
Cauxuaxia.— Malls to
are now despatched and

and from Calif(

la, via the United States
'can packet.

Ina by aver) Ameril

SENTENCE ON MR. APPLIERSON AT JAMAICA.—At
Kingston, on the 28-h of July, Justices Macdougal and Sir
Rowe,Joshua K.C.B , pre iding, Robert J. APPtierson, the
prisoner convicted of forgery at the last assizes, but who
was remanded until certain legal points had been argued by
counsel before the three judges, was brought up for sentence.
The judge, of er addressing the prisoner, and animadvert-
ing on the enormity of the offence, sentenced him to 15
years' transportation, to be confined in the General Peniten-
tiary, and kept to rimi labour till the lehteuce he Gated
into ant.