Lay a piece of manilla paper on the table about twelve inches larger on each edge than your strainer, placing the strainer on it face up; rub a handful of cotton batting first in the crayon sauce and then on the manilla paper to remove any foreign substance. Then apply the cotton with a circular motion to the crayon paper to make the background desired. Next sprinkle the pulverized pumice stone over the entire background, and go over this with the fingers in a circular movement, using them flat from the second joint to the ends; then lift the strainer up, and, resting it on the edge, jar off all the pumice stone, and when this is done, lay it down again and rub it off with a clean piece of cotton. Now rub the fingers in the crayon sauce, keeping them flat so that it will adhere evenly to them, and go over the background lightly as when rubbing in the pumice stone and you will produce a nice stipple effect. Finally, place the strainer on the easel, and finish according to the directions given for finishing crayons made on bromide enlargements.

Of course it will need considerable experience before you can succeed in doing this perfectly, but patience and perseverance will ultimately accomplish the desired end. There are two matters of importance to be borne in mind in making these backgrounds—first, do not have any small, hard pieces of crayon on the cotton when you rub it on the paper, and second, use the fingers in as flat a position as possible, for if you do not have them flat down on the paper you are likely to make dark spots in the background.