This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1817 Excerpt: ...and also to increase its firmness and tenacity; by which operation, the weaver is enabled-to put his cloth closser together, and it also retains its closeness after it is weaved, throughout the process of bleaching. A spyndle of yarn, weighing 1 lb. 8 oz. before it is boiled, will only weigh 1 lb. 4 oz. after, which is about the sixth part lighter; and it the stuff from which the yarn is spun is of a bad quality, it will empty still more; very coarse yarn is seldom boiled, as it would be expensive, but is only put into a steep from twenty-four to forty-eight hours, in order to make it soft, and more flexible for the operation of weaving. To boil Linen yarn, first steep it among soft water for the space of twenty four hours, then take it out of the steep, and lay it on a rack to drain off the water from it, and wring it; (and in the interim, have the boiler with a sufficient quantity of Pot ashes brought near the boil, ) then make it up soft, and put it into the boiler, press it down with a pole, but not hard, as that would cause (he yarn to be very unequally boiled; or as it is termed among Boilers' (spotted: ) and when the yarn is new put in, it ought to he particularly attended to, to make the fire burn brisk and strong, make it to boil three hours, (but previous to putting in the yarn have an iron hoop cross warped with cords laid in the bottom of the boiler, to prevent it sitting to the bottom, and burning the yarn;) then take it out, and let it lie till about lukewarm, put it into the boiler again, with a sufficient quantity of Pearl ashes, and boil it for an hour and a-half, then take it out, and wash the lee out of it in clear running water, then wring it, and let it lie hooked in the wrung state, (which makes it clear and open much better in the dryin...