A Practical Manual of the Collodion Process, Giving in Detail a Method For Producing Positive and Negative Pictures on Glass and Paper. — THE COLLODIO-ALBUMEN PROCESS.

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A Practical Manual of the Collodion Process, Giving in Detail a Method For Producing Positive and Negative Pictures on Glass and Paper. THE COLLODIO-ALBUMEN PROCESS. · ch 23/27

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