What is a sleeping porch without a screen? Without a functioning screen? One swallow may not make a summer, but one fly can make torture out of night. Some makers will key your screens so that each screen has its tag for replacement and there is no loss of effort and time in resetting them next year in their proper places. This can be done in windows, door and porch work. Of course, with the rolling screen--they are never taken down and much labor is saved. Screens are not a luxury; they are a health measure. When we get more civilized we will probably have our screens inspected to see that they fit, and the boards of health in the various towns will keep a close watch on them, for diseases are rapidly being traced to the minute insect carriers. Typhus and yellow fever are the last results. Think what Central Europe would have been spared had it been properly screened! Contrary to usual opinion screens can be most attractive and fit in with the surrounding wood trim, and be a department of house furnishing not to be belittled. And don’t fail to realize that a lot of trouble can be saved and unsightliness be avoided, if the screen is thought of before building your home--and if the roller type is installed, you have no storage care, or removal and recurring slavery. CHAPTER XXXII POLISHING THE WATER SUPPLY “I found a fish in my bath-tub to-day,” said I to a friend. “Wasn’t that the best place in the house to find one?” was the reply. “Yes,” I said, “but I can’t say I enjoy bathing in an aquarium, and my civic pride is hurt because I have been so proud of my city’s water quality and all of the sister municipalities which filter or chlorinate or both.” In this anecdote is the crux of the filter situation. In times gone by a filter was sold to save life from polluted waters, from streams, wells, surface sources, sewage-burdened rivers, etc. It was a dire necessity and became by its efficiency or lack of it a godsend or a menace. If it were a good filter it needed care and attention in the greatest degree to make it a boon; if it were a bad filter it continued despite care to be a curse far more dangerous than the unfiltered product because it became a collector and a breeding place for bacteria and doled out water as pure to the most modest of drinkers. But as with every department of living in this realm, things have moved on. In this case gloriously. For since the municipalities have taken our lives in their hands the dangers from bad filters are slight and the need of good ones necessary but not a life-and-death matter. In short, the excitement about filters in the home is dead but their use goes marching on.