The Sun.
London, England, 1850-02-06 00:00:00

'I7HE ROYAL POLYTECHNIC
INSTITUTION, REGENT-STREET.
The First of a Series of Illustrated Lectures, by Dr. Bachhoffner,
an the Philosophy of Scientille Recreation, daily at Two o'clock, and
n the Evenings, at Eight.—An entirely new Set of Dissolving
Views of London in the Sixteenth Century, and as it now is, with
a Descriptive Lecture, daily, at Half-past Four, and in the Even-
ings at a Quarter to Ten.—The Views of Rome, Including new
Views of the Interior and Exterior of St. Peter's, with Dioratnic ef-
fects, are shown daily, at One o'clock.—Lectures on Chemistry, with
brilliant experiments, by Mr. Ashley.—Experiments with the Diver
and Diving-bell.—New Exhibition of Chromatropes.—The Ma-
chinery, Models, &c., explained.
Admission, ls.—Schools, Half-price.

KEATING'S COUGH LOZENGES.-
A certain remedy for disorders of the Pahnonary Orzans—
in Difficulty of Breathing—in Redundancy of Phlegm—in Incipient
Consumption (of which Cough is the most positive indication) they
are of unerring efficacy. In Asthma and in Winter Cough they have
never been known to fall. KEATING'S COUGH LOZENGES are
free from every deleterious ingredient ; they may, therefore, be
taken at all times by the most delicate female and by the youngest
child ; while the Public Speaker and the Professional Singer will
find them invaluable in allaying the hoarseness and irritation inci
dental to vocal exertion, and consequently a powerful auxiliary in
the production of melodious enunciation.
Prepared and sold in Boxes, Is. I gd., and Tins 2s. 9d., 4s. 6d.,
and 103. 6d. each, by Thomas Keating, Chemist, &c., No. 79, St
Paul's Church-yard, London; retail by all Druggists and Patent
Medicine Venders in the kingdom.

THIRTY-FIRST EDITION.
Illustrated by 26 Anatomical Coloured Engravings= Steel.
ON PHYSICAL DISQUALICATIONS, GENERATIVE INCAP.L.
CITY, AND IMPEDIMENTS TO M RARAGE.
gew Edition, enlarged to 196 pages. Just published, price 2s. 6d., or
by post, direct from the Establishment, 3s. 6d. in postage stamps,
THE SILENT FRIEND, a Medical Work on
the infirmities and decay of the generative system, from ex-
cessive indulgence, infection, and the inordinate use of mercury,
with remarts on Marriage, and the means of obviating certain dla-
11.01fications. Illustrated by 26 Coloured Engravings. By R. and
L. PERRY and CO., Consulting Surgeons, 19, Berners-street, Ox-
ford-street, London. Published by the Authors sold by Strange,
21, Paternoster-row ; Hannay, 63, and Sanger, 150, Oxford-street ;
Starle,23, Titchborne-street, Haymarket; and Gordon, 146, Leaden-
hall-street.
PART I. treats of the anatomy and physiology of the re-product's o
organs, and is illustrated by Six Coloured Engravings.
PART 11. treats of the consequences resulting from excessive indul-
gence, and their lamentable effects on the ertin.n, producing mentsl
and bodily weakness, nervous excitement, and generative neapacity.
illustrated by Three Explanatory Engravings.
FARM 111, treats of the diseases resulting from infection, either in
rho primary or secondary form, and contains explicit directions for
their treatment. This section is illustrated by Seventeen Coloured
Engravings.:
FART IV. een42ing a Prescription for the Prevention of Disease
by a simple application, by which the danger of infection is cb-
viated. This important part of the Work should no came the
seder's notice._

Pest V. is devoted to the consideration of marriage, and its
duties. The causes of unproductive union aro also considered, and
the whale subject critically and philosophically inquired into.
Tnsoounlax. Baur OF SYIIIA.OI7M Is exclusivay employed in treat-
'ag nervout and sexual debility, impotence, it to., 11 s. and 335, pc r
battle. Tho Concentrated lictus:l'e Essence, as anti-syphilitic
remedy, for purifying the blood I* eases ofinfectiou, secondary s7mp-
toms, eruptions, and the abuse of cre:cury, its, and 333. per bottle.
Perry's PunlYing Specific rile, Jr. 9Q., 4a. Gd., and I Is. per box, t.
certain remody for gonorrhee.:, Elect, stricture, and chronic infi anima.
ion of the bladder. •.Ansultatlon fee, if by letter, 1/. A minutf
detail of the ease Is tequked : age, habits, and position in society.
SI Packutc, will advise, to be had at the Eitanshment Only, b:
w•lie.h the fee, IL. is saved. Messrs. Perry, Surgeons, aro in atten
twice wag; at 19, derriere-street, (Ixford-stroet, London, Pram Mc-
V 0141.11 Tro, al,l rill to &Ott en BandaY4 host 1,20114 to Ort