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To Paper Whitewashed Walls

2813. To Prepare Paper for Hang- The following method is simple, sure, and in- ing. Inexpert hands often find difficulty in expensive: Make flour starch as you would hanging the lengths of paper so as to make for starching calico clothes, and, with a white- the patterns match. No general directions Soluble SOLUBLE GLASS. can be given for this, but a little study at the outset will often save cutting to waste, and Glass. This is a combiother difficulties. In this matter, as in others, boiling water, yielding a fine, transparent, nation of silica with an alkali, soluble in it is wise to "first be sure you are right, then semi-elastic varnish. When made according go ahead." As soon as the proper way to cut to Liemen's or Kuhlman's method, under inthe paper is decided upon, a whole roll, or creased pressure and heat, it is unaffected by more, may be cut at once, and the pieces laid, cold water, and the object painted or covered printed side downwards, upon the table , by the same can only be deprived of its coatweights being placed upon the ends to prevent ing by undergoing the same heat and pressure curling. The paste should then be applied as was required to prepare the original soluto the back of the uppermost piece, as expeto the back of the uppermost piece, as expe- tion. Soluble glass prepared from potash is time usually called silicate of potash; that from employed in this part of the operation, the soda being silicate of soda. The most exmore tender will the paper get, and the more tensive use which is made, at present, of soludifficult it will be to hang it properly. About ble glass produced after the other methods, is one-quarter of the length should be turned up for the adulteration of soap; in fact, such a at the bottom of the strip before hanging; preparation is a kind of soap, in which the as, without this, the bottom is apt to stick to expensive fatty acids are replaced by the cheap the wall before the upper part of the strip silicic acid or sand; but it is a bad soap, very can be adjusted. If the paper is very thick, caustic, as the silicic acid but very imperfectly both ends must be folded over, so as to meet neutralizes the alkali. Another use of water in the middle.

Besides being more convenient for handling, this allows the paper to soften, without the paste getting dry. glass is that of hardening cements, mortar, etc., so as to render them impermeable by water.