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.
TO PHOTOGRAPHERS.—MR. PHILIP DELAMOTTE begs to announce that he has now made arrangements for printing Calotypes in large or small quantities, either from Paper or Glass Negatives. Gentlemen who are desirous of having good impressions of their works, may see specimens of Mr. Delamotte's Printing at his own residence, 38. Chepstow Place, Bayswater, or at
MR. GEORGE BELL'S, 186. Fleet Street.
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.