Never wet your finger or thumb in order to turn over leaves. Many respectable people are addicted to this habit, but it is a vulgar one. Besides, it is entirely useless. The same remarks might be applied to the habit of suffering the corners of the leaves to turn up, in 'dog's ears.' Keep every leaf smooth, if you can. Never hold a book very near the fire, nor leave it in the hot sun. It injures its cover materially, and not a few books are in one or both of these ways entirely ruined. It is a bad practice to spread out a book with the back upwards. It loosens the leaves, and also exposes it in other respects. You will rarely find a place to lay it down which is _entirely_ clean, and the least dust on the leaves, is readily observed. The plan of turning down a leaf to enable us to remember the place, I never liked. It indulges the memory in laziness. For myself, if I take much interest in a book, I can remember where I left off and turn at once to the place without a mark. If a mark must be used at all, however, a slip of paper, or a piece of tape or ribbon is the best. When you have done using a book for the time, have a place for it, and put it in its place. How much time and patience might be saved if this rule were universally followed! Many find it the easiest thing in the world to have a place for every book in their library, and to keep it in its place. They can put their hands upon it in the dark, almost as well as in the light. Never allow yourselves to use books for any other purpose but reading. I have seen people recline after dinner and at other times, with books under their heads for a pillow. Others will use them to cover a tumbler, bowl, or pitcher. Others again will raise the window, and set them under the sash to support it; and next, perhaps, the book is wet by a sudden shower of rain, or knocked out of the window, soiled or otherwise injured, or lost. I have seen people use large books, such as the family-bible, or encyclopedia, to raise a seat, especially for a child at table. [10] Some persons always read with a pen or pencil in hand, and when a thought occurs, note it in a little book, kept for the purpose. CHAPTER V. Social and Moral Improvement. SECTION I. _Of Female Society, in general._ No young man is fully aware how much he is indebted to female influence in forming his character. Happy for him if his mother and sisters were his principal companions in infancy. I do not mean to exclude the society of the father, of course; but the father's avocations usually call him away from home, or at least from the immediate presence of his children, for a very considerable proportion of his time.