The Sun.
London, England, 1859-04-06 00:00:00

FRENCH ACADEMY OF SCIENCES.

At the last sittinc, a letter was read from Dr.
Ch. Jackson, giving a description of the auriferous
placers of Dahlonega, Georgia, 'U.S., where large
hydraulic works are being undertaken, on the
Californian model, for gold-washing; the Chestertee,
Yahoola, and Etau, contributing their waters for the
purpose. It has been ascertained that by making
the water pass through pipes ate high pressure, earth
containing only one-third of a cent's worth of gold
per bushel can be washed at a profit; and as the
whole district of Dahlonega will yield at least
three cents of gold per bushel, and in some places
as much as ten, the undertaking will
_be highly
profitable. Some favoured spots contain vast
auantities of the precious metal. Dahlonega is a
town of Lumpskin County, Georgia, which was
bought of the Cherokees about twenty-five years
ago. Its geological formation is very simple, con-
sisting of a soft micaceous and amphibolic schist,
so broken and decomposed that it can be shovelled
away like common earth to the depth of eigthy
feet sometimes. There Is no trace of drift or de-
nudation, and the gold on the hills is distinctly
crystalline, and not rounded off at the edges, as it
would be by rolling ; it is so, however, on the banks
of the rivers, where it has undergone the friction
of the sands and waters. The amphibolic schist
above-mentioned is intersected with regular veins
of auriferous quartz, as also of tetradymite or tellu-
ruret of bismuth, also containing gold. Specular
and magnetic iron are abundant in this auriferous
region, as is also the case in the Carolinas, and in
California.—M. Nickles wrote to announce that
his discovery of the presence of flourine in the
mineral waters of Plombieres, announced in 1857,
has since been fully confirmed by the discovery of
a vein of fluor spar in that basin, at the very base
of the mineral springs.—M. Laiguel submitted a
new plan for the canal through the Isthmus of
Suez, which, in his opinion, might be advantage-
ously substituted for the old one. M. Guerin de
Meneville sent in a paper to show that the silk-
work of the Aylanthus glandulosa, which he is
now endeavouring to propagate in Fradee, s the
same as the wild silkworm mentioned by the Jesuit
d'lncarville as living on the ash (that being the
name he gives to the tree since called ailan-
thus), and on another tree which he calls the
pepper-plant of China, but which the inhabitants
of the country call fizgara. M. Elie de Beaumont
presented several hydrographic charts and a paper
by M. A. Boutakoff, a captain of Vie Russian navy,
on the mouth of the Syr-Dariah or laxartes, in the
Lake of Aral. The maps show the outline of the
banks and the soundings taken in 1847, 1853, and
January, 1859, from which it appears that the
delta of that river is undergoing constant changes.

PRICE OF GOLD.—The quotation of gold at Paris
is about at par, and the short exchangeon London is 25.072
per £1 sterling. On comparing these rates with the Eng-
lish Mint price of £3 17s. lON. per ounce for standard gold,
it appears that gold is nearly 4-10ths per cent. dearer in
Paris than in London. By advices from Hamburg the
price of gold is 423 per mark, and the short exchange on
London is 13.11 per £1 sterling. Standard gold at the
English Mint pnce is therefore about 3-10ths per cent.
dearer in Hamburg than in London. The !course of ex-
change at New York on London for bills at 60 days' sight
is about 109/- per cent., which, when compared with the
Mint par between the two countries, shows that the ex-
change is slighly in favour of England ; and, after making
allowance for chrages of transport and difference of inte-
rest, the present rate leaves a trifling profit on the impor-
tation of gold from the United States.
RESULTS OF COMPETITIVE EXAMINATION.—It may
have been observed that a few weeks ago the successful
candidate fort the Hertford University Scholarship, Oxford,
was Henry Nettleship, a Charterhouse exhibitioner. The
Porson University Scholarship at Cambridge has just been
won by Richard Jebb, also a Charterhouse exhibitioner.
In the year 1850 the governors of the Charterhouse threw
open four scholarships at. the Charterhouse, to be com-
peted for by boys at the school in their 15th year. Both
the abovenamed gentlemen were elected scholars in this way.
It may be added that the first Christ Chursh studentship
thrown open to the whole college was won by a Charter-
house elective scholar, George John Blore. 'When afterwards
Christ Church extended their competition, and threw stu-
dentships open to the whole university, the first student-
ship thus won was won by a Charterhouse elective scholar,
Frank Parnell.

VACCINATION.—An order has been issued from
the Privy Council-office, stating that whereas by the
Public Health Act of 1858 the Privy Council are em-
powered to issue regulations for securing the due quali-
fication of all persons to be contracted with by guar-
dians and overseers of unions and parishes in England
for the vaccination of persons resident in such unions and
parishes, it is enacted " That no contract for vaccination
shall be entered into by such guardians or overseers, except
with a medical practitioner who shall be legally competent
to practise both medicine and surgery in England and
Wales. Provided, that if in any union or parish it shall
not be practicable for the guardians or overseers to contract
with a person residing in or near to the district for which
he shall be required to act, fully qualified as aforesaid, the
guardians or overseers may report the circumstances to the
Poor Law Board, and the said board may permit a contract
to be entered into with a medical practitioner not fully
Observe--
oens,
qualified for so long a time as the said hoard shall deem
proper."
ADVERTISEMENT.]
l_polvEßFri.2 HEARING.—TESLIEGsIIcTorAENs.D......opERA,RACE, AND
SPEC.,
TALCLE s
opticians,PE S P E C T
3I V 9
,E —Messrs.tssEs
Albermarle-Street,opposite the York Hotel, W.—Opera, Race-course, Field,
and general Out-door Day and Night Perspective Glasses,
very small, for the waistcoat pocket, each containing 12 and
r Piccadilly. and B.
B.
18 lenses, constructed of German glass. Will show dis-
tinctly a person to know them at two-and-a-half and three
miles, and an object from eight to ten miles distant. Her
inches cohl
es m
long,e n gentlemen,
which
hieh a .
per-
son Majesty's Coast Guards are making use of them as dayand
night glasses in preference to all others ; they are also pre..
setleelidscOlpges
by s
gamferredekeefoper
rs eerT-
. may be clearly seen and known at 3} miles' and art
object at 12 to 14 miles' distance ; and with an extra astro-
nomical eye-piece, Jupiter's moons, Saturn's rings, and
the double stars are distinctly seen. All the above can be
d
had of larger and all sizes, with increasing powers, and
are secured by her Majesty's Royal Letters Patent.
The Royal Exhibition, 1851. A valuable, newly-
' nvented, very small, powerful Waistcoat-pocket Glass,
the size of a walnut, by which a person can be seen
and known one and a half mile distant. They answer
every purpose on the Race-course and at the Opera
houses. Country scenery and ships are clearly seen
at four to six miles. They are invaluable for shooting,
deer-stalking, yachting, to sportsmen, gentlemen, game-
keepers, adteurists. Price 30s.—Spectacle Lenses of the
greatest transparent power. The great advantage derived
from this invention is, that vision becoming impaired is
preserved and strengthened, and very aged persons are
enabled to employ their sight at the most minute occupation
—can see with those lenses of a much less magnifying
power, and they do not require the frequent changes to the
dangerous effects of further powerful assistance. Persons
can be suited at the most remote part of the world by send-
ing one of the glasses out of their spectacles in a letter, and
stating the distance from the eyes they can read small print
witk it, and those who have not made use of syectaeles by
stating their age. Deafness.—New Discovery.—The Organi9
Vibrator, an extraordinarily powerful small newly-invented
instrument for Deafness, entirely different from all others,
surpasses anything of the kind that has been, 9
or probably
they
ever can be, produced. Being of the same Colour as
skin, is not perceptible. It enables deaf persons to hear
th 6 distinctly at church and at public assemblies;
ears is re
unplea-
sant sensation of singing noises in
the
that entirely
-
possibly could
moved, and it affords all the assistance
be desired.-39, Albemarle-street, Piccadilly. Observe--
Ppposito the York Motel, W.

VAMBRIDGE UNIVERSITY ELECTION.-
The LONDON COMMITTEE for Promoting Mr.
BERESFORD HOPE'S ELECTION SITS DAILY at the
Trafalgar Hotel, Cockspur-street.

W. STIRLING, Esq., M.P., M.A.,
Trinity College, Chairman.

R T. FRERE, MA., F.R.CI Honorary
W. F. KEMP, M.A., Secretaries.
C. KNIGHT WATSON. M.A.,

CAMBRIDGE UNIVERSITY ELECTION.
The CAMBRIDGE COMMITTEE for Promoting Mr.
BERESFORD HOPE'S ELECTION SITS DAILY at 18,
Trinity-street, Cambridge.
Rey. W. G. CLARK, M.A.,
Yellow and Tutor of Trinity College, Public Orator, Chairman
Rev. W. M. CAMPION, M.A., Fellow and
Tutor of Queens' College,
Rev. N. F. FERRERS, M.A., Fellow and Lec-
turer of Caine College,
Rev. W. C. MA.THISON, M.A., Senior Fellow
and Tutor of Trinity College,
Rev. J. E. B. MAYOR, M.A., Fellow and As-
sistant Tutor of St. John's Colleg-e,
.Rev. E. H. PEROWNE, Fellow and
Tutor of Corpus Christi College,
Rev. W. F. WITTS, M.A., Fellow of King's

College,
Bev. A. WOLFE, M.A., Fellow and Tutor of
Clare College,

Honorary
Secretaries.

J) 0Y A L PRINCESS'S THEATRE.
l) Under the Management of Mr. Charles Kean.
THIS EVENING, will be produced Shakspeare's historica'
lay of KING HENRY V.
King Henry V., Mr.-C. Kean ; Chorus, Mrs. C. Kean.

THEATRE-ROYAL, HAYMARKET.
Lessee, Mr. J. B. Buckstone.
THIS EVENING, will be produced a new Comedy, en:
titled EVERYBODY'S FRIEND. Mr. and Mrs. Charles
Mathews.

THE CRITIC. Mr. and Mrs. C. Mathews, Mr. Compton
To conclude with JACK'S RETURN FROM CANTON.

Commence at 7.

NEW THEATRE - ROYAL, ADELPHI,
Sole Proprietor and Manager, Mr. Benj. Webster.
THIS EVENING, A CABINET QUESTION. Mr. J. L.
Toole, Mr. Billington, Miss Arden.
MASKS AND FACES ; Triplet, Mr. B. Webster ; Quin,
Mr. P. Bedford ; Sir Charles, Mr. C Selby ; Ernest, Mr. Bil-
lington ; Peg Woffiington, Miss Woolgar ; Mabel, Miss H.
Simms.
To be followed by THE MILLINER'S HOLIDAY. Mr.
J. L. Toole, C. Selby, Billington, Misses Woolgar, Keeley,
and K. Kelly.
To conclude with THE BIRTHPLACE OF PODGERS.
Mr. J. L. Toole, Bin e. Selby, Mr. Billington, Miss Kelly.