wgate Street.

* * * * *

PHOTOGRAPHIC CAMERAS.--OTTEWILL'S REGISTERED DOUBLE-BODIED FOLDING CAMERA,
is superior to every other form of Camera, for the Photographic Tourist,
from its capability of Elongation or Contraction to any Focal Adjustment,
its Portability, and its adaptation for taking either Views or
Portraits.--The Trade supplied.

Every Description of Camera, or Slides, Tripod Stands, Printing Frames,
&c., may be obtained at his MANUFACTORY, Charlotte Terrace, Barnsbury Road,
Islington.

New Inventions, Models, &c., made to order or from Drawings.

* * * * *

IMPROVEMENT IN COLLODION.--J. B. HOCKIN & CO., Chemists, 289. Strand. have,
by an improved mode of Iodizing, succeeded in producing a Collodion equal,
they may say superior, in sensitiveness and density of Negative, to any
other hitherto published; without diminishing the keeping properties and
appreciation of half tint for which their manufacture has been esteemed.

Apparatus, pure Chemicals, and all the requirements for the practice of
Photography. Instruction in the Art.

THE COLLODION AND POSITIVE PAPER PROCESS. By J. B. HOCKIN. Price 1s., per
Post, 1s. 2d.

* * * * *

PHOTOGRAPHY.

A COMPLETE SET OF APPARATUS for 4l. 4s., containing an Expanding Camera,
with warranted Double Achromatic Adjusting Lenses, a Portable Stand,
Pressure Frame, Levelling Stand, and Baths, complete.

PORTRAIT LENSES of double Achromatic combination, from 1l. 12s. 6d.

LANDSCAPE LENSES, with Rack Adjustment, from 25s.

A GUIDE to the Practice of this interesting Art, 1s., by post free, 1s. 6d.

French Polished MAHOGANY STEREO-SCOPES, from 10s. 6d. A large assortment of
STEREOSCOPIC PICTURES for the same in Daguerreotype, Calotype, or Albumen,
at equally low prices.

ACHROMATIC MICROSCOPES.

Beautifully finished ACHROMATIC MICROSCOPE, with all the latest improvement
and apparatus, complete from 3l. 15s., at

C. BAKER'S. Optical and Mathematical Instrument Warehouse, 244. High
Holborn (opposite Day & Martin's).

* * * * *

Important Sale of Rare Books, Books of Prints, and Illuminated Manuscripts.

MESSRS. S. LEIGH SOTHEBY & JOHN WILKINSON, Auctioneers of Literary Property
and Works illustrative of the Fine Arts, will SELL by AUCTION, at their
House, 3. Wellington Street, Strand, on MONDAY, January 9, 1854, and Three
follo