Place a mat with the proper opening upon the collodion picture, and with a pointed style go round the picture, cutting it as it were from the glass. All the collodion on the outside of this line is next removed with a piece of wood, as for instance, the end of a match cut to a flattened point, and made moist. By using this like a scraper, and keeping it moist, the collodion will gradually disappear, and the surface will be kept clean. The picture is afterward' transferred to leather, enamelled cloth, etc., by the method just described. Transfer Paper .
Paper is prepared as follows for receiving the collodion positive.
Dissolve the latter by a gentle heat, and then add it to the first solution. Shake the solutions well together, and then allow the mixture to settle for a few days. It is afterward decanted into a dish. Ordinary unruled fine paper, in pieces of the proper size, is floated on this bath, and afterward hung up to dry. By repeating the process, the paper finally receives a very smooth surface.