Star.
London, England, 1822-09-23 00:00:00

DR UR Y-LANE THEATRE:

The alterations are proceeding rapidly toseardstoiM.
pletiort ; o much so, indeed, that the architect con&
dently calculates on being finished in time to.enable
them to open on the 14th October, is before stated;.
200 men ate constantly•emrloyed within the walls,
while•nearly the same number areengaged without in
forwarding the embellishments. The wl.ole of the
terior, excepting the ornamental part, is comiletid.
tie shape and size at e admirable,and if the same taste
is evinced in the decorative department, it %ill be by
far the most commodious Theatre, as it regards bear-
ing and seeing„in the metropolis.
-Son* opinion may be formed 'of its present size,
when we state that near as was the front of the late
front•boxes to the stage. the present are nearer. by
their width; and the sides consequently very consi-
derably nearer ; the shape now adopted h6ing that of
a half dick, the sides of which are a little, but very
little elongated. There are private boxes under the
(hest 'ell-de, as heretofore, on each side of the pit;
and under it also, at the end of the pit, is a space for
standing room, , • .
A new-Green Room has been erected the out-
side of. the Theatre; and in addition to the various
entrances, which at this Theatre are very st erior, a
new and convenient one has been made to the private
boxes. The Rot nda, Saloon, kc. have beets com-
plete'', renovated, so as, in fact, to assume the ap-
peal ance of a new Theist' e. To crown the whole, the
corps dramatique has been replenished with much ad-
ditional talent. It is therefote to be hoped. that when
the cam paig' 11 does commence, it will he carried on
successfully. Not less, it is said, than £lO.OOO have
been expended on these alterations..• . .
•It is also said that Mr. ELLisrpm intends to t lice the
most effectual measures to prevent the intrusion of
improper women, and their attendant Dandies, in-the
dress citcle, and the circle immediately over• it; as he
is at last convinced that the 'empty boxes he had last
.season arose entirely from the improper• general ad-
mission of such.male and female immodest characters&

.111 E HELIOTROPE, A NEW INSTRUMENT:

When Professor GAUSS was engaged in 1820, tit
Luneburg, in trigonometrical 4.bsei vations, to com-
bine the Hanoverian with the, Danish triangles, he
perceived
.that when he
.directed his telescope to.
wards the steeple of St. Michael's Church at Ham.
burgh, which was seven German ithirty•two Eng-
lish) miles distant, the little round window in the
upper part. of it regected the image of the ion to.
wards-him, and thus impeded him iu his oi,eratibitss
This gave him the idea of using-the sun's HOC for
signals, by catchit it with a mirror arid reflecting
it to the place:to whkli a signal was to be given. He
made a calculation of the strength of the sun's Light-,
and of the diminution it suffers in the atmosphere;
which it appeared that a small mirror; two br
three inches in diameter, was sufficient-to reflect the
sun's image to the distance- of ten- or omit Get man
miles. This is 'the Heliotrope, .described to he, of
great importance in the 'Treasuring of large triangles,
and as likely to supersede the methods hitlierto em-
ployed. These connisted in placing, or tas ening by
night, several Ari.,,and. lamps. with reflectors at those
places which it-was intended to observe limn a great
distance: This Measuring by night.is..vei y inconve-
nient, and by day the 101t._of the lamps. is much too
faint to be. always seen at il,e distance of several
miles-throqh a telescope. Toe inventor of the 1-te,
liotrope, on the other hand,- had full proof of the
great advantage to be derived from it, when he was
last year on the summit of the Bracken Mountain, to
determine the three corners of the triit..gle tor mea,
suring the. meridian of the Nor th of Germany ; on
which occasion Proles* Gauss gave signals with
this instiunient to his assistants, stationed at 14 Ger-
trrati"iniles from him, upon • the Insellse gh, the
forest of Vuosingia... But•the great use tire Helio.
,tro.pe is nut confined to Auch operations. It will be
found greatly to escci the telegraph for giving sip.
nals, and in time will probably supersede it—pro-
vided the Professor could ensure the perpetualasp-
pearance of the-sun ! As the reflected image of the
sun is visible at so great, a distance, the signal sta-
tions nary be much fewer. The mode of using it is
likewise more si in plc, it being merely necessary alter-
nately to shecv and to hide the mirror; the intervals,
measured by a stop watch, are the signals.

• After BY6oN'S engagement in the West Indies,
there was a great clamour about the badness Of the
ammunition. Soon after this Mr. Fox had a duel
with Mr. ADAM ; on receiving that Gentleman's Bally
and finding it had' made but ti tle impre,sion, he ex_
claimed, Egad, ADAM, .it had been all over with
me, it you had': ot charged with Government powder r
A UCH frECTURE.—The magnifiLent ti iumphal arch,
begun to be erected by 1.34 /NAPA RTIC at the not th gate
of the city of Milan, to commemorate his splendid
achievements in Italy, if finished according to the
original conception and design of that extraordinary
man, would be one of the proudest specimens of
architecture in Europe. The completion of this pub-
' lic-spirited undertaking devolved upon the present
rulers of that country : but the Austri:4ns have left
this grand work still unfinished. Enormous columns
and asses or hewn stone, ready tOr the hand ut the
architect, which had been on their way from the. Alps
to Milan, and intended for this structwe at the time
of NateciLsam's abdication, are now seen 1) ing by the
r•ad bide, negie.:ted, at no very great distance from
that tity.
Boosa.—Averse Pride of Brown or Muscovado Bow, sam,_
puled from. the- kotorns nude in ske -Week ending loth Sept.
102. 744 IJ. pet cwt. etelusive of Importation