SPECTACLES.—WM. ACKLAND applies his medical knowledge as a Licentiate of the Apothecaries' Company, London, his theory as a Mathematician, and his practice as a Working Optician, aided by Smee's Optometer, in the selection of Spectacles suitable to every derangement of vision, so as to preserve the sight to extreme old age.
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 give 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.
STEEL PENS.—PARTRIDGE & COZEN'S STEEL PENS are the best; made of the purest steel, all selected and warranted. Fine or medium points, 1s. 3d. per box of twelve dozen; broad ditto, 1s. 6d.; extra broad, 1s. 6d., a very easy pen—will write with comfort on brown paper; correspondence pen, 1s. 3d. per box—this pen adapts itself to any hand. P. & C. are the original makers, and although there are many imitations, it is still unequalled. Best magnum bonums, 3s. 6d. per gross; silver pens, 1s., and gold ditto, 2s. each, warranted; patent holders, fit any pen, 6d. dozen, or 5s. gross. A liberal allowance to shippers and the trade. Samples per post, on receipt of six stamps.
PARTRIDGE & COZEN'S Cheap Stationery Warehouses, 127. and 128. Chancery Lane.
JUST PUBLISHED.—A CATALOGUE OF CURIOUS BOOKS, by J. CROZIER, 5. New Turnstile, near Lincoln's Inn Fields, Holborn. Catalogues sent on receipt of One Postage Stamp.