After your print has reached the proper degree of color, take it out and immerse it in clean water, when it will become a rich blue, except those parts which are to remain white. Change the water once or twice, or until every part comes out distinctly; then take it from the bath and dry between sheets of blotting-paper.
The second way to prepare paper consists in washing good letter-paper with the following solution:
Bichromate of potash, 10 grains. Sulphurate of copper, 20 grains. Water, 1 ounce.
Papers prepared with this are of a pale yellow color; they may be kept any length of time in a tin box, and are always ready for use. For copying engravings, the wings of dragon-flies, or of cicadas, the beautiful skeletonized leaves or delicate ferns, arranged in tiny bouquets on the inner surface of the ground glass, this paper is excellent.
After it has been exposed to the influence of the sunshine, take the frame to your dark closet, and after removing the print, wash it over with a solution of nitrate of silver of moderate strength. As soon as this is done, a very vivid positive picture makes its appearance, and all the “fixing” it requires is well washing in pure water.
The dark closet spoken of above is necessary in all kinds of photography, as light let in upon the sensitized paper would darken the whole surface. To make a “dark room,” stop the upper part of the window with any opaque substance, and pin a large sheet of dark orange paper over the lower sash. The yellow paper used in making envelopes is excellent for this, but if it cannot be found, four sheets of tissue-paper, two red and two yellow, placed over each other, answer the purpose very well.
A friend of the writer utilizes an old disused chicken-house for his dark room, and it answers its purpose capitally, while it was at the window of this little room I first saw the tissue-paper successfully used.
The prints used for copy might be rendered more translucent by rubbing them over with a little linseed oil mixed with turpentine. This, of course, should be thoroughly dried before it is used in connection with the sensitized paper.
A great number of graceful, pretty things can be photographed in this manner; the delicate maiden-hair fern, so common in several parts of our country; the fine, feathery leaves of many of our wild flowers, some of the finer flowers themselves, and many of the beautiful mosses and sea-weeds after they are pressed, make exquisite little photographs, worthy of a place in any collection.