London;

Who have lately published, by the same Author,

GREECE UNDER THE ROMANS: a Historical View of the Greek Nation, from the
time of its Conquest by the Romans until the Extinction of the Roman Empire
in the East, B.C. 146-A.D. 717, 8vo., pp. 554, price 16s.

HISTORY OF GREECE, from its Conquest by the Crusaders to its Conquest by
the Turks, and of the EMPIRE OF TREBIZOND, 1204-1461, 8vo., pp. 520, price
12s. {515}

* * * * *

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 the 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 PICTURES.--A Selection of the above beautiful Productions
(comprising Views in VENICE, PARIS, RUSSIA, NUBIA, &c.) 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.

* * * * *

PHOTOGRAPHY.--Collodion (Iodized with the Ammonio-Iodide of Silver).--J. B.
HOCKIN & CO., Chemists, 289. Strand, were the first in England who
published the application of this agent (see _Athenaeum_, Aug. 14th). Their
Collodion (price 9d. per oz.) retains its extraordinary sensitiveness,
tenacity, and colour unimpaired for months; it may be exported to any
climate, and the Iodizing Compound mixed as required. J. B. HOCKIN & CO.
manufacture PURE CHEMICALS and all APPARATUS with the latest Improvements
adapted for all the Photographic and Daguerreotype processes. Cameras for
Developing in the open Country. GLASS BATHS adapted to any Camera. Lenses
from the best Makers. Waxed and Iodized Papers, &c.

* * * * *

Just published, price 1s., free by Post 1s. 4d.,

THE WAXED-PAPER PHOTOGRAPHIC PROCESS of GUSTAVE LE GRAY'S NEW EDITION.
Translated from the French.

Sole Agents in the United Kingdom for VOIGHTLANDER & SON'S celebrated