Care of Books.
Books should be shelved in the coolest part of the room, and where the air is never likely to be overheated, which is near the floor, where we ourselves live and move. In the private libraries of our residences a mistake is often made in carrying the shelving of our book-cases so high that they enter the upper and overheated stratum of air. If anyone be skeptical on this point, let him test, by means of a step-ladder, the condition of the air near the ceiling of his common sitting-room on a Winter evening, when the gas is burning freely. The heat is simply insufferable.