It appears, however, that it was known in the East, much earlier; it being observed that most of the ancient manuscripts in Arabic and other Oriental languages, were written upon cotton paper, and it is thought the Saracens first introduced it into Spain. Anderson, in his “History of Commerce,” says, that till the year 1690, there was scarcely any paper made in England, but the coarse brown sort. Paper was previously imported from France, Genoa, and Holland.--However, the improvement of this article in England, in consequence of the French war, produced a saving to this country of £100,000 annually, which had been paid to France for paper alone. After linen and cotton are so much worn as to be unfit for any other purpose, the several kinds are collected together, and the hard seams and other accumulations, which would require a much longer time to prepare proper for the general mass, than would be consistent with the economy of the whole, those shreds are then separated and thrown away; the different kinds are then collected and kept separate from each other. In such a state of separation they are laid in troughs, which are afterwards filled with water, where they are suffered to remain till a species of fermentation takes place; and the separation of the parts formed by art is not only rendered easy, but also, a division may be made of the most minute parts; the separation is then made by machinery. When properly prepared, a sufficient quantity is placed upon a wire frame, or otherwise one formed of cloth; by mechanical pressure, the moisture is extracted, after which the sheets are hung up separately on lines to dry, in a building properly constructed to admit a free circulation of air. Manufacturers of paper, originally, could only use white rags to make white paper; but Mr. Campbell, in 1792, discovered a method of discharging any colour from rags, by bleaching with oxi-muriatic acid gas, for which he obtained a patent. The next considerable improvement which appears to have been made in the manufacture of paper, consists in using felt or woollen cloth in conjunction with the wire cloth formerly used, and now of necessity retained, and other processes too voluminous to be inserted here. The only remaining circumstance we have to mention is, that in the beginning of the present century there was manufactured, in the vicinity of London, a very good printing paper, made entirely from wheat straw; for which manufacture, the inventor obtained a patent, but he did not succeed, we presume, because it is now discontinued. Considerable quantities of paper is now made from straw in France; but it is of a yellow tinge. Paper made from linen is the best. PAPER HANGING.