The first requisite for this is a water-tight tray, large enough to hold the enlargements. A hard rubber tray can be purchased, or a wooden one that will answer the purpose may be made. I use one of my own construction that is cheap and serviceable. It is simply a wooden box, 27×32 inches and 4 inches deep, made of 1/2 inch grooved material and lined with black oil cloth, not cut at the corners, but folded in. In this, when about half full of water, lay the enlargement face up, and let it remain in the water fifteen minutes. It should then be laid face down on the wet cloth (which should be all ready) as described in the preceding chapter, for mounting crayon paper. Care must be exercised to have the cloth wet all over, for if there should be any dry spots in it they would ruin the gelatin surface. With a cloth or squeegee remove the water from the back of the enlargement and also from the cloth around its edges, for if there is too much water on the edge of the cloth it will work up into the paste and prevent it from sticking when mounted. Now paste the enlargement and strainer according to the directions given for mounting crayon paper, place the enlargement on the strainer and rub it down by using the fingers wet in a little water, or the squeegee can be used; and then trim off even with the outside of the strainer. Avoid rubbing too hard along the edges, as by so doing you will press out all the paste and it will not stick.

You can remount a bromide enlargement as often as necessary in case it does not come out perfect, only bear in mind that you must not allow anything dry to touch the surface when wet. But I should not advise you to try more than three times directly on the strainer. It would be better to mount a piece of crayon paper on a new strainer, and after it is dry to remount the bromide enlargement on that.