ACHROMATIC TELESCOPES, with the New Vetzlar Eye-pieces, as exhibited at the Academy of Sciences in Paris. The Lenses of these Eye-pieces are so constructed that the rays of light fall nearly perpendicular to the surface of the various lenses, by which the aberration is completely removed; and a telescope so fitted gives one-third more magnifying power and light than could be obtained by the old Eye-pieces. Prices of the various sizes on application to
WM. ACKLAND, Optician, 93. Hatton Garden, London.
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.
*** Catalogues may be had on application.
BLAND & LONG, Opticians, Philosophical and Photographical Instrument Makers, and Operative Chemists, 153. Fleet Street.
PHOTOGRAPHIC APPARATUS MANUFACTORY, Charlotte Terrace, Barnsbury Road, Islington.