VALUABLE PRIVILEGE.

POLICIES effected in this Office do not become void through temporary

difficulty in paying a Premium, as permission is given upon application to

suspend the payment at interest, according to the conditions detailed on

the Prospectus.

Specimens of Rates of Premium for Assuring 100l., with a Share in

three-fourths of the Profits:--

Age £ s. d.

17 1 14 4

22 1 18 8

27 2 4 5

32 2 10 8

37 2 18 6

42 3 8 2

ARTHUR SCRATCHLEY, M.A., F.R.A.S., Actuary.

Now ready, price 10s. 6d., Second Edition, with material additions,

INDUSTRIAL INVESTMENT and EMIGRATION: being a TREATISE on BENEFIT BUILDING

SOCIETIES, and on the General Principles of Land Investment, exemplified in

the Cases of Freehold Land Societies, Building Companies, &c. With a

Mathematical Appendix on Compound Interest and Life Assurance. By ARTHUR

SCRATCHLEY, M.A., Actuary to the Western Life Assurance Society, 3.

Parliament Street, London.

* * * * *

ROSS'S PHOTOGRAPHIC PORTRAIT AND LANDSCAPE LENSES.--These lenses give

correct definition at the centre and margin of the picture, and have their

visual and chemical acting foci coincident.

_Great Exhibition Jurors' Reports_, p. 274.

"Mr. Ross prepares lenses for Portraiture having the greatest intensity

yet produced, by procuring the coincidence of the chemical actinic and

visual rays. The spherical aberration is also very carefully corrected,

both in the central and oblique pencils."

"Mr. Ross has exhibited the best Camera in the Exhibition. It is

furnished with a double achromatic object-lens, about three inches

aperture. There is no stop, the field is flat, and the image very

perfect up to the edge."

A. R. invites those interested in the art to inspect the large Photographs

of Vienna, produced by his Lenses and Apparatus.

Catalogues sent upon Application.

A. ROSS, 2. Featherstone Buildings, High Holborn.

* * * * *

PHOTOGRAPHIC PORTRAITS and VIEWS by the Collodion and Waxed Paper Process.

Apparatus, Materials, and Pure Chemical Preparation for the above

processes, Superior Iodized Collodion, known by the name of Collodio-iodide

or Xylo-iodide of Silver, 9d. per oz. Pyro-gallic Acid, 4s. per drachm.

Acetic Acid, suited for Collodion Pictures, 8d. per oz. Crystallizable and

perfectly pure, on which the success of the Calotypist so much depends, 1s.

per oz. Canson Frère's Negative Paper, 3s.; Positive do., 4s. 6d.; La

Croix, 3s.; Turner, 3s. Whatman's Negative and Positive, 3s. per quire.

Iodized Waxed Paper, 10s. 6d. per quire. Sensitive Paper ready for the

Camera, and warranted to keep from fourteen to twenty days, with directions

for use, 11×9, 9s. per doz.; Iodized, only 6s. per doz.

GEORGE KNIGHT & SONS (sole Agents for Voightlander & Sons' celebrated

Lenses), Foster Lane, London.

* * * * *

PHOTOGRAPHIC CHEMICALS of absolute Purity, especially prepared for this

Art, may be procured from R. W. THOMAS, Operative Chemist, 10. Pall Mall,

whose well-known Preparation of Xylo-Iodide of Silver is pronounced by the

most eminent scientific men of the day to excel every other Photographic

Compound in sensitiveness, and in the marvellous vigour uniformly preserved

in the middle tints of pictures produced by it. MR. R. W. THOMAS cautions

Photographers against unprincipled persons who (from the fact of Xyloidin

and Collodion being synonymous terms) would lead them to imagine that the

inferior compound sold by them at half the price is identical with his

preparation. In some cases even the name of of MR. T.'s Xylo-Iodide of

Silver has been assumed. In order to prevent such dishonourable practice,

each bottle sent from his Establishment is stamped with a red label bearing

his signature, to counterfeit which is felony.

Prepared solely by R. W. THOMAS, Chemist, &c., 10. Pall Mall.

* * * * *

PHOTOGRAPHIC PICTURES.--A Selection of the above beautiful Productions may

be seen at BLAND & LONG'S, 153. Fleet Street, where may also be procured

Apparatus of every Description, and pure Chemicals for the practice of

Photography in all its Branches.

Calotype, Daguerreotype, and Glass Pictures for the Stereoscope.

BLAND & LONG, Opticians, Philosophical and Photographical Instrument

Makers, and Operative Chemists, 153. Fleet Street.

* * * * *

BURKE'S (Right Hon. Edmund) WORKS AND CORRESPONDENCE.--The NEW EDITION

(containing the whole of the Contents of the former Edition published in 20

Volumes, 8vo., at the price of 9l. 5s.) is now completed, handsomely

printed in 8 vols. 8vo., with Portrait and Fac-simile, price 4l. 4s.

RIVINGTONS, St. Paul's Church Yard, and Waterloo Place.

*** The Reflections on the French Revolution may be had separately, price

4s. 6d. in cloth boards.

* * * * *

THE GENTLEMAN'S MAGAZINE for JANUARY 1853, which is the First Number of a

New Volume, contains the following articles:--

Notes and Queries, Number 166, January 1, 1853 A Medium of Inter-communication for Literary Men, Artists, Antiquaries, Genealogists, etc. · 第 139 / 169 题