Practical photo-micrography / by Andrew Pringle.

  • Pringle, Andrew.
Date:
[1893]
Catalogue details

Licence: Public Domain Mark

Credit: Practical photo-micrography / by Andrew Pringle. Source: Wellcome Collection.

Provider: This material has been provided by University of Bristol Library. The original may be consulted at University of Bristol Library.

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    EDWARDS'S (TRADE L MARK) ISOCHROMATIC PLATES. Recognked as INDISPENSABLE FOR successful PHOTO-MICROGRAPHY. USED BY AI.L. THE BEST WORKERS. These colour-sensitive plates will keep equally as well as ordinary plates, and give brilliant clear negatives with full printing density. IN TWO RAPIDITIES. MEDIUM. INSTANTANEOUS. A plate of medium rapidity, fully iso- chromatic, giving density readily, and permitting |reat latitude in exposure. Requires only half the exposure of the medium isochromatic. Gives soft, yet clear and brilliant negatives. RRIOE LIST OF EDWARDS'S RILATES. Size of Plates. 3i X 31 inches 4t X 3i 5x4 6i X 4l 7i X 5 8x5 Price per Doz. 1/3 1/6 2/6 3/8 5/3 5/6 Size of Plates. 8i X 6J inches 9x7 ,, 10 X 8 „ 12 X 10 ,, 15 X 12 Larger sizes to order. Price per Doz. . 6/6 . 8/- . 10/- . 16/- . 24/- May be obtained of all Dealers in Photographic Materials, or from the Manufacturers— B. J. EDWARDS & CO., THE GROVE, HACKNEY, LONDON. Telegraphic Address: EXCEL, LONDON,