To enlarge to cabinet size, with as little expense as possible, a considerable number of small photographs, stamp size, the prints must be copied the same size, and the negatives thus obtained enlarged upon bromide paper. If the prints are unmounted, proceed as follows: - Soak them in water, and, while they are still in the water, get as many as can be accommodated (probably about sixteen) on to a quarter-plate piece of clean glass thai is free from scratches and bubbles, and squeeze well into contact by placing a sheet of blotting-paper oxer the back and driving out air bubbles. The prints must be placed face downwards on the glass. Put the glass in a printing frame and hang it flat against a wall in a full tight. Extend the camera to twice the focus of the Lens and place it at the same distance from the printing-frame, measuring both ways from i he stops. Having focussed very accurately in the centre, stop down until the outermost pictures are sharp. Use slow plates and give two exposures, one double the other. These negatives should be enlarge d on to bromide paper 21 in. by 18 in., which will give 6in. to each picture. Pictures as nearly the same as possible in tone should be chosen for enlarging together.

Each picture could, of course, be enlarged from a separate negative, but the expenditure of time and money would be considerable. When developing a sheet of this size the developer can be applied with a large pad of cotton-wool or a flat soft brush, first wetting the print with water to slow development.