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.

* * * * *

COLLODION PORTRAITS AND VIEWS obtained with the greatest ease and certainty
by using BLAND & LONG'S preparation of Soluble Cotton; certainty and
uniformity of action over a lengthened period, combined with the most
faithful rendering of the half-tones, constitute this a most valuable agent
in the hands of the photographer.

Albumenized paper, for printing from glass or paper negatives, giving a
minuteness of detail unattained by any other method, 5s. per Quire.

Waxed and Iodized Papers of tried quality.

Instruction in the Processes.

BLAND & LONG, Opticians and Photographical Instrument Makers, and Operative
Chemists, 153. Fleet Street, London.

*** Catalogues sent on application.

* * * * *

THE SIGHT preserved by the Use of SPECTACLES adapted to suit every variety
of Vision by means of SMEE'S OPTOMETER, which effectually prevents Injury
to the Eyes from the Selection of Improper Glasses, and is extensively
employed by

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

* * * * *

{412}

Sale of Photographic Pictures, Landscape Camera by Horne & Co.; Prints and
Drawings.

PUTTICK AND SIMPSON, Auctioneers of Literary Property, will SELL by
AUCTION, at their Great Room, 191. Piccadilly, early in MAY, an important
Collection of Photographic Pictures by the most celebrated Artists and
Amateurs; comprising some _chefs d'oeuvre_ of the Art, amongst which are
large and interesting Views taken in Paris, Rouen, Brussels, Switzerland,
Rome, Venice, various parts of England and Scotland. Rustic Scenes,
Architectural Subjects, Antiquities, &c. Also, some interesting Prints and
Drawings.

Catalogues will be sent on Application (if at a distance, on Receipt of Two
Stamps.)

* * * * *

SALE of the REV. G. S. FABER'S LIBRARY.--MR. WHITE has received
instructions to sell by Auction in the House No. 1. North Bailey (next door
to the Exhibition Room), Durham, on Tuesday, May 9th, and three following
days, the extensive and valuable Library of t