"Upholstered furniture is quickly and thoroughly cleaned by the vacuum-method. Dust is removed not only from the surface, but also from the folds and creases and even the interior of the cushions. Moths and their eggs are sucked out from their hiding places under the upholstery buttons or in the corners. "Mattresses and pillows are kept clean and sweet by vacuum-treatment. Passing the cleaning tool over the surface prevents dust from accumulating and sifting in. It sucks out the stale dusty air inside and draws in fresh air, thus preventing that unpleasant musty smell which hotel beds sometimes have. "By the vacuum-method, tapestries and hangings are kept fresh and bright without the trouble and expense of taking them down. One hotel manager told me his vacuum-system saved him $10 every time he cleaned the hangings in his dining-room, for it used to cost him that sum to have them re-draped. "By means of a special brush, wood and tile floors can be cleaned without the dust of dry sweeping, or the muddy aftermarks of sawdust. _Vacuum Always on Tap._ "The most and recent important improvement in vacuum-cleaning consists in having the vacuum or 'suction power' always 'on tap' on every floor. At convenient points in the corridors, nickel-plated taps are placed. To these, the housemen or maids can quickly attach the rubber hose connected with the cleaning-tools. Opening a valve turns on the suction or vacuum. Then, as fast as the tool is moved over the surface to be cleaned, dust and dirt are sucked through the hose into the pipes and away to an air-tight dust-tank in the basement. The 'on tap' vacuum is always ready for use. No need to telephone or send word to the engineer to start that pump or to stop it when the work is done. "Although the vacuum, or suction, is kept on tap all the time, practically no power is consumed except when the cleaning is going on. Even then the amount of power used--whether it be steam or electricity--is automatically proportioned to the number and the size of the cleaning tools in use. Whenever you lay down the sweeper to move a chair, just so much less power is consumed while the tool is idle. If one sweeper is in use, only one-tenth as much power is needed as when ten sweepers are working. The little upholstery tuft-cleaner consumes only one-ninth as much power as the carpet-sweeper. This means a great saving of power and is a great improvement over the old vacuum-methods, by which it was impossible to keep the vacuum on tap and by which, once the apparatus was started, full power was consumed, no matter how many sweepers were at work." THE LINEN-ROOM AND THE LINEN-WOMAN.