Page:Treatise on Soap Making.djvu/75

59 boiler than with yellow soap, and can be cleaner pumped off.

When sufficient boils have been given, and the soap arrived at perfection, it will assume an appearance something like a curdy mass. Take then a little upon your forefinger, (as before directed); and if the same effect seems to attend it, that is, when pressed with the thumb it squeezes into a thin, hard, clear scale, and parts freely with the finger, the soap is ready for finishings Draw the fire cool down with a few pails of ley, and in a short time thereafter pump clean off.

Set the fire, and add to the soap eight or ten pails of water, (the pail I suppose to contain about nine or ten English gallons). When this is melted, and properly incorporated with the soap, try, as formerly directed, if the leys run from it when held up upon the hand-board. If they do, more