Descriptive and General Catalogue of Philosophical Apparatus and Chemical Preparations Manufactured and Sold by Bland & Long, Opticians, Philosophical, Photographical & Chemical Instrument Makers and Operative Chemists ...

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Bland & Long, 1854 - Scientific apparatus and instruments - 203 pages
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Page iii - ... are opened and closed, and the arrangement by which the cleansed grain is delivered at one side and the dust and small seeds at the other, though convenient and useful, do not possess novelty sufficient to justify a particular description ; but we hesitate not to say,, that the arrangement as a whole will be found to answer the purpose for which it has been designed. SHEATHING AND ROOFING PLATES. — To Matthew Uzzielli, of Clifton Street, Finsbury Square, in the county of Middlesex, Gentlemen,...
Page 170 - No. 2. Set of Apparatus, same as above, but with double Achromatic Lens, rendering it more suitable for portraits . . . . 6 10 0 No. 3. Complete Apparatus, consisting of sliding body Camera of superior construction, with dark slide and loose frames for plates, 5 in. by 4 in., and 4 in. by 3 in...
Page iv - India, and other foreign parts, must be accompanied by a remittance or order for payment in London...
Page 122 - Introduction will be found to contain much information which has not previously appeared in print, and it is hoped that it will be of service to those who are desirous of consulting
Page 112 - 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 ot Improper Glasses, and is extensively employed by BLAND & LONG, Opticians, 153.
Page 131 - OWINO to the intense illuminating power of the oxyhydrogen light, and the size to which the pictures are magnified, it is essential that the greatest care should be exercised in the...

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