The Sun.
London, England, 1864-12-06 00:00:00

THE CATTLE SHOW.—The WELLINGTON,
St. Jame&'s-street. - The WELLINGTON Three Shilling
Dinner, as well as Dinners from the "Carte," served as
usuil.
By order.
JOHN CATES, Manager.
The Wellington —Tnirance, 160, Piccadilly.
•

pARTs.—GRAND HOTEL DU LOUVRE.-
Establishbd in 1865.—Situated in the most Cent/al
part of Paris, Rue de Rivoll And Place du Palais Royal—Six
Hundren Bed-rooms at from 31r. to 24)1r.—Sixty sitting-
rooms at from 41r. to 2Cf r.—a richly-decorated Dining Saloon
—Table d'lltite at six o'clock—Public Coffee and Dining
Rooms —Choice Wines—Dinners served 'a la carte both in the
dining rooms and the private apartments—Reading and
Conversation Saloons; also Saloons for Musical, Wedding,
and other parties—all Newspapers and Serial Publications
reccived—Divans, Coffee, Smoking and Billiard Rooms—
numerous Bath-rooms—Carriages on the premises—first-
class Private Equipages at command -Omnibuses running
to all the railway. stations—Pctal Letter-box—Telegraph
Office day and night—Photograph Studio—a staff of servants
speaking all languages.

TO PERSONS SEEKING LANDED
ESJATES, TOWN AND COUNTRY RCSIDENCES,
FREEHOLD AND LEASEHOLD INVESTMENTS, AND
PROPERTIES GENERALLY—
To BE HAD GRATIS, at the principal Railway Bookstalls
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OWNERS or F OPERTIES wishing to Sell or Let can em-
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THERE IS NO CHARGE Incurred, unless a tenant or pur-
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and then onlythe usual moderate commission.
Auction and Land Oftloes, 67, Chancery-lane, London.

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Every article warranted.
CLERGYMEN and GENTLEMEN ABOUT TO FUR-
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TESKELL'S PATENT,—The
IL. exclusive right to this Patent was secured to Mr.
Eskell, of Grosvenor-street, Grosvenor-square, by hor Ma-
sty's Royal Veal (July 17, 1860), and can only be procured at
his residence, where specimens maybe seen, and every infor-
mation can be obtained. Under this Patent, Artificial Teeth
to last a lifetime, are made, and fitted in a few hours without
pain or extractions. They support loose teeth, and protect
tender gums ; their resemblance to nature is perfect and un-
detectable, and they are guaranteed for mastication and
articulation. Treatise on the subject sent for seven stamps.
Consultations free.
OPINIONS OF THE PRESS.
"Mr. Eskell, dental-surgeon, has succeeded in producing
artificial teeth, and so constructing them that they last their
purpose a lifetime. . . . The rocess p has been patent,
and promises to be most valuable."—Court Journal, August
4,1860.
"A surprising novelty in the adaptation of artificial teeth
cthe gum by a patented principle, which secures the most
perfect aid, combined with the greatest ease and agreeable
appearance."—Morning Advertiser, August 9, 1860.
Decayed teeth stopped, &o. Terms strictly moderate.
8, Grosvenor-street, Bond-street.

Mr. Glaisher's Balloon Ascent.
-4.

TO THE EDITOR OF THE SUN.
Sir,—At the last meeting of the British Association, the
balloon committee were charged with experiments to be
made at times in the year and at times in the day at which
no experiments bad hitherto been made, particularly at
night and in the winter months. No arrangement has, as
yet, been made to take night observations; but those of the
winter have been determined upon.
The first of these took place from 'Woolwich Arsenal on
the fi,st, day of this month. In consequence of the balloon
prepared for these experiments having been wantonly de-
af-rued at Leicester at a Foresters' fete, we aro compelled to
use the best balloon Mr Colwell has. With this we cannot
hope to ascend more than one mile and a half or two miles,
and if, as on this occasion, the course of tho balloon is to-
wards the sea, not even that elevation can be attempted,
but at the coat of greatly abbreviated time for observation,
and the sacrifice of all results excepting those connected
with temperature.
If, with the small balloon, our course should at any time
be inland,'both objects can be secured by keeping the gas at
the first part of the journey, and ascending to the limit to
which the balloon will take us just before descending.
Tho balloon left at 2h 37m p.m., with a temperature of
48 deg, which remained unchanged untii 600 ft were passed.
It then declined gradually to 311 deg, at the height of
5,200 ft, by 3h 58m. On falling to 4,000 ft the temperature
increased to 331 deg, and declined to 30 deg at 5,000 it by
3h 26m. On again descending to 4,200 ft there was an in-
crease of 2 deg, and a decline to 29 deg at the height of
5,400 ft, by 3h 42m; a gradual increase to 41 deg at 1,400 ft,
then no change on descending through the next 6001 t, when
the last observation was made at 4h 23m, and we were on
on the ground at 413. 26m, when it was too dark to read the
instruments.
The temperature of the dew point, at that temperature
at which the water in the air is deposited visibly upon sub-
stances cooled down to that degree, as the bright metallic
cups of a hygrometer, was 8 deg. below that of the air from
the earth to the height of 1,600 ft.; the air then became
much more humid, and at 2,100 ft. the difference between
these two temperatures was 5 deg. only. On passing into
a W.N.W. wind at 2,300 ft. the difference between them
became 11 dog., and was nearly 20 deg. at the height of
5,030 ft., where the air was very dry. On descending, the
two temperatures approached each other, and at 4,0130 ft.
high were separated by 10 dog. orly. On again ature f tog
the difference increased to 23 deg., the tempera oe
air being 32 deg. and that of the dew-point 9 deg., and it
continued dry at high elevations.
On descending below 3,500 ft at 3h 53m the air again be-
came humid, and continued so at all lower elevations, par-
ticularly between the heights of 800 ft and 1,200 ft, where
the two temperatures were nearly alike and the balloon was
covered with water. Some strata of wet air were passed of
no great thickness, without perceptible fog, depositing a
good deal of moisture.
The reading of a delicate blackened bulb thermometer,
placed in the full rays of the sun, which read 66 deg before
leaving the earth, never read so much as one degree higher
than another delicate thermometer most carefully protected
from the sun during the whole journey. The bulbs of these
two thermometers wore within two inches of each other.
No tinge of ozone was shown throughout the journey.
When at the height of 3,000 ft, the conclusion from proving
guns at Woolwich affected the balloon, and caused every
rope to vibrate perceptibly, and all the instruments to
shake—and this took place each time a report was heard,
even up to the height of 5,000 ft. Once no less than three
eohoes were hoard following the report, but usually one re-
port alone was heard.
A very delicate magnet, lent to me by Captain Evans,
R,N., F.R.S,, whioh vibrates in a little more than two
seconds on the earth, was observed on 10 different occasions,
and the time of vibratioc appeared to be lengthened not-
withstanding the lower temperature of the higher regons.
Another magnet less delicately mounted, and which 1
have frequently used, also occupied a somewhat longer time
in vibrating than on the earth.
For an altitude of 20 degrees all round there was mist;
the remainder of the sky was for the most part clear.
On
examining the sun with a spectroscope on the earth the
colours of the spectrum were moderately bright. The line
B at the red and and G at the violet end were the extreme
limits, and there were not many besides the principal lines
between. The wind was nearly W. near the earth. On
reaching 1,100 feet wo entered a S.W. current, and thought
we should cross the river Thames N. of Erith, but on pass-
ing above 2,000 feet we entered a W.N.W. current, and
passed at 3h. some little distance S. of Erith.
smoke from
We were
over Dartford at 3h. 16m., and here we saw the
Gravesend passing southwards, or S.S.W., till it reached
1,000 ft., and then to turn upon itself. At this time, at the
height of 5,000 ft., we were moving W,N.W., or towards
Cobham-park ;at 3h. 34m. we were S. of Greenhithe, an
it d
nearly over Darent-wood. On examining the country
had an appearance we had never seen before at the h
rfeeight
of a mile up to this time, all hills having
been dwarfed to
level plains, and all valleys having been raised so that the
earth has appeared uniformly plain. On the contrary, now,
every variation of surface, every hollow, every rise were
clearly shown; the course of the river Darent was traced
for miles, with every elevation of land near it, but we could
not see anything moving on the earth. The sun was shin-
ing ; the sky was perfectly clear and of a deep blue; on exa-
miniLg the sun's spectrum, it was indeed different from be-
low; the colours were all far brighter, the lines very nume-
rous, extending from A at the red end to far b
leyond H
The
at
the violet end, which line •wao made up of One ines,