If you like nature you can use the above process of contact printing to fine advantage. Instead of blue paper it is better to use what is known as solio paper42 or silver paper.43

To make a contact silver print first put a finely veined leaf, the filmy wing of a butterfly, a piece of delicate lace or any other thin, translucent object on the glass in the printing frame, lay a sheet of solio, or silver paper over it, then put the back in the frame and fix the springs.

Set the frame so that the sunlight will fall full on the glass side of it. From time to time open half of the hinged back and see how the print is coming on; make the print a couple of shades darker than you want it when finished, but be careful not to overexpose it for silver paper prints much quicker than blue paper.