THE REV. DR. G. OLIVER'S MONASTICON DIOCOESIS EXONIENSIS: being a
Collection of Records and Instruments illustrating the Ancient Conventual,
Collegiate, and Eleemosynary Foundations in Devon and Cornwall. Folio,
cloth boards (published at 4l.), now reduced to 1l. 16s. 1846. The same,
half bound in morocco, tops gilt, 2l. 6s. 1846.
Just published, gratis, and post free,
A. HOLDEN'S EXETER BOOK CIRCULAR. Parts II. and III. A Catalogue of
Second-hand Books, of all classes, in good condition.
Exeter: A. HOLDEN. London: NATTALI & BOND.
{170}
* * * * *
ROSS'S PHOTOGRAPHIC PORTRAIT AND LANDSCAPE LENSES.--These lenses give
correct definition at the centre and margin of the picture, and have their
visual and chemical acting foci coincident.
_Great Exhibition Jurors' Reports_, p. 274.
"Mr. Ross prepares lenses for Portraiture having the greatest intensity
yet produced, by procuring the coincidence of the chemical actinic and
visual rays. The spherical aberration is also very carefully corrected,
both in the central and oblique pencils."
"Mr. Ross has exhibited the best Camera in the Exhibition. It if
furnished with a double achromatic object-lens, about three inches
aperture. There is no stop, the field is flat, and the image very
perfect up to the edge."
Catalogues sent upon Application.
A. ROSS, 2. Featherstone Buildings, High Holborn.
* * * * *
Just published, price 1s., free by Post 1s. 4d.,
The WAXED-PAPER PHOTOGRAPHIC PROCESS of GUSTAVE LE GRAY. New Edition.
Translated from the last Edition of the French.
GEORGE KNIGHT & SONS., Foster Lane, London.
Manufacturers of Photographic Apparatus and Materials, consisting of
Cameras, Stands, Coating Boxes, Pressure Frames, Glass and Porcelain
Dishes, &c., and pure Photographic Chemicals, suited for practising the
Daguerreotype, Talbotype, Waxed-Paper, Albumen and Collodion Processes,
adapted to stand any Climate, and fitted for the Requirements of the
Tourist or Professional Artist.
Sole Agents in the United Kingdom for VOIGHTLANDER & SON'S celebrated
Lenses for Portraits and Views.
General Depôt for Turner's, Whatman's, Canson Frères', La Croix, and other
Talbotype Papers.
Instructions and Specimens in every Branch of the Art.
* * * * *
PHOTOGRAPHY.--XYLO-IODIDE OF SILVER, prepared solely by R. W. THOMAS, has
now obtained an European fame; it supersedes the use of all other
preparations of Collodion. Witness the subjoined Testimonial.
"122. Regent Street
"Dear Sir,--In answer to your inquiry of this morning, I have no
hesitation in saying that your preparation of Collodion is incomparably
better and more sensitive than all the advertised Collodio-Iodides,
which, for my professional purposes, are quite useless when compared to
yours.
"I remain, dear Sir,
"Yours faithfully,
"N. HENNEMAN.
Aug. 30. 1852.
to Mr. R.W. Thomas."
MR. R. W. THOMAS begs most earnestly to caution photographers against
purchasing impure chemicals, which are now too frequently sold at very low
prices. It is to this cause nearly always that their labours are unattended
with success.
Chemicals of absolute purity, especially prepared for this art, may be
obtained from R. W. THOMAS, Chemist and Professor of Photography, 10. Pall
Mall.
N.B.--The name of Mr. T.'s preparation, Xylo-Iodide of Silver, is made use
of by unprincipled persons. To prevent imposition each bottle is stamped
with a red label bearing the maker's signature.
* * * * *
TO PHOTOGRAPHERS.--Pure Chemicals, with every requisite for the practice of
Photography, according to the instructions of Hunt, Le Gray, Brébisson, &c.
&c., may be obtained of WILLIAM BOLTON, Manufacturer of pure chemicals for
Photographic and other purposes.
Lists of Prices to be had on application.