A Treatise on the Positive Collodion Process

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Bland & Long, 1857 - Ambrotype - 75 pages
 

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Page 28 - C.) to the weight of an equal volume of distilled water at the same temperature, both weights being corrected for the buoyancy of air.
Page 27 - So far as the result is concerned, it does not matter whether we employ cotton wool or unsized paper in the manufacture of Collodion.
Page 51 - ... the centre of it a circular patch of collodion, rather more than sufficient to cover it.

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