e Representation of Natural Objects, are unrivalled.

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

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

* * * * *

DAGUERREOTYPE MATERIALS.--Plates, Cases, Passepartoutes. Best and Cheapest.
To be had in great variety at

McMILLAN'S Wholesale Depot, 132. Fleet Street.

Price List Gratis.

* * * * *

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.

* * * * *

PHOTOGRAPHIC INSTITUTION.--An EXHIBITION of PICTURES, by the most
celebrated French, Italian, and English Photographers, embracing Views of
the principal Countries and Cities of Europe, is now OPEN. Admission 6d. A
Portrait taken by MR. TALBOT'S Patent Process, One Guinea; Three extra
Copies for 10s.

PHOTOGRAPHIC INSTITUTION,
168. NEW BOND STREET.

* * * * *

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 131. Newgate Street.

* * * * *

AMUSEMENT FOR LONG EVENINGS, by means of STATHAM'S Chemical Cabinets and
Portable Laboratories, 5s. 6d., 7s. 6d., 10s. 6d., 21s., 31s. 6d., 42s.,
63s., and upwards. Book of Experiments, 6d. "Illustrated Descriptive
Catalogue" forwarded Free for Stamp.

WILLIAM E. STATHAM, Operative Chemist, 29c. Rotherfield Street, Islington,
London, and of Chemists and Opticians everywhere.

* * * * *

RETROSPECTIVE REVIEW (New Series), consisting of Criticisms upon, Analyses
of, and Extracts from, Curious Useful and Valuable Old B