A Practical Manual of the Collodion Process, Giving in Detail a Method For Producing Positive and Negative Pictures on Glass and Paper. — PATENT FOR DISPLACING WATER FROM SOLUBLE COTTON BY THE USE OF ALCOHOL; ALSO, FOR THE USE OF BROMIDE OF POTASSIUM IN COMB

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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. PATENT FOR DISPLACING WATER FROM SOLUBLE COTTON BY THE USE OF ALCOHOL; ALSO, FOR THE USE OF BROMIDE OF POTASSIUM IN COMB · ch 16/27

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