In winter, you will find that for the first half hour or so that you are reading after supper, you will want to keep fairly near the fire, because the blood is being drawn in from your skin to your stomach for purposes of digestion; but be sure to see that at least one, and better two, windows in the room are open six inches or so at the top, so that there is plenty of fresh air pouring into the room. [Illustration: A COZY NOOK WHEN EVENING COMES] When study hour comes, take up your books and go briskly to work, forgetting that there is anything else in the world, and you will be astonished how quickly you will learn your lessons. Besides, you will be learning one of the most valuable lessons in life--to do with your might whatever your hands, or minds, find to do. GOOD NIGHT I. GETTING READY FOR BED By and by the clock strikes eight or nine, and your mother says, "Children, time to go to bed!" Sometimes you will have just come to the interesting point in the story, and would give anything to go on and finish it. But often you will be just nodding over your book, or beginning to wonder why the story is not quite so interesting as it was, or why the lines seem to be running into one another, and the book inclined to swing up and bump your nose. If you have had a lively, busy, happy day, you are quite sleepy enough to be ready for bed--that is, if you could drop into it with all your clothes on, without all the bother and fuss of undressing. So you pull yourself together bravely and answer, "All right, mother," and say "Good night" to everybody, and upstairs you go. Of course, you must take off your clothes, because you would find them most uncomfortable to sleep in. Besides, the little pores all over your skin have been pouring out perspiration all day long; and a great deal of this has been caught by your clothes, just as it is caught by the bedclothes while you sleep. So it is a good thing to take off your clothes, and let your skin be well aired and cooled. Don't leave your clothes all in a heap on the floor just where you happen to shed them, but hang them up over the back of a chair or on pegs, so that the air can blow through them all night long and sweeten and clean and dry them. Clothes that are worn continuously become sour with perspiration, and for this same reason your mother gives you regularly, once or twice a week, clean underwear and clean shirts or dresses. After you have undressed for bed, wash your face and neck and hands; and if you have a nice warm room or bathroom, take a quick splash, or sponge bath, all over, before you put on your nightgown. This will wash away from your skin everything that the perspiration has been leaving on it all day long, as well as any dust, or dirt, that may have got on it during the day.