STEREOSCOPES AND STEREOSCOPIC PICTURES.

BLAND & LONG, 153. FLEET STREET. OPTICIANS and PHILOSOPHICAL INSTRUMENT

MAKERS, invite attention to their Stock of STEREOSCOPES of all Kinds, and

in various Materials; also, to their New and Extensive Assortment of

STEREOSCOPIC PICTURES for the same, in DAGUERREOTYPE, on PAPER, and

TRANSPARENT ALBUMEN PICTURES on GLASS, including Views of London, Paris,

the Rhine, Windsor, &c. These Pictures, for minuteness of Detail and Truth

in the Representation of Natural Objects, are unrivalled.

BLAND & LONG, Opticians, 153. Fleet Street, London.

*** "Familiar Explanation of the Phenomena" sent on Application.

* * * * *

PHOTOGRAPHIC APPARATUS, MATERIALS, and PURE CHEMICAL PREPARATIONS.

KNIGHT & SONS' Illustrated Catalogue, containing Description and Price of

the best forms of Cameras and other Apparatus. Voightlander and Son's

Lenses for Portraits and Views, together with the various Materials, and

pure Chemical Preparations required in practising the Photographic Art.

Forwarded free on receipt of Six Postage Stamps.

Instructions given in every branch of the Art.

An extensive Collection of Stereoscopic and other Photographic Specimens.

GEORGE KNIGHT & SONS, Foster Lane, London.

* * * * *

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.--HORNE & CO.'S Iodized Collodion, for obtaining Instantaneous

Views, and Portraits in from three to thirty seconds, according to light.

Portraits obtained by the above, for delicacy of detail rival the choicest

Daguerreotypes, specimens of which may be seen at their Establishment.

Also every description of Apparatus, Chemicals, &c. &c. used in this

beautiful Art.--123. and 121. Newgate 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.

* * * * *

Notes and Queries, Number 221, January 21, 1854 A Medium of Inter-communication for Literary Men, Artists, Antiquaries, Genealogists, etc. · 第 143 / 146 题