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| | Photography, Improvement in, Collodion Process, Plates, Negatives, 1855 |
 | | Archer, the originator of the photographic collodion process, has been long working to render it more perfect, and to remove difficulties which all who make use of glass for negatives have experienced, not only from the weight of the glass, but from its liability to breakage, and other accidents happening to the picture film. |
 | | A solution of gutta percha in benzole is poured over the collodion picture taken in the usual way; after being allowed to dry, which it does in a minute or two, the glass picture is then immersed in a dish of water, and the film immediately separates from the glass. |
 | | Impressions from negatives thus treated are quite as clear and delicate as those produced from the collodion picture by the old method, and the negatives can be placed in closer contact with the prepared printing paper. |
| www.londonancestor.com /iln/photographic-process.htm (265 words) |
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