Feather beds should be avoided. The heat which they maintain about the body is inconvenient and dangerous, predisposing to flooding and exhausting perspirations. The hair or sponge mattress is to be preferred. The bed-clothing should not be too heavy. Blankets are to be employed rather than coverlids, as they are lighter and more permeable to perspiration. The mattress and cover should be well aired during the day. The sleeping-room should be capacious and well ventilated, and no curtains permitted about the bed. Occasional rest is also necessary in the daytime. A nap of an hour or two upon a sofa or lounge will then prove very refreshing. In the earlier months of pregnancy it will tend to prevent miscarriage, and in the latter months to relieve the distress consequent upon the increased size of the womb. It is not unusual, as the close of pregnancy approaches, for a feeling of suffocation to ensue when the woman attempts to lie down. This may be overcome by supporting the back and shoulders with cushions and pillows. Or a bed-chair may be employed. This, if well constructed and covered, will often be found very grateful at night, in the last few weeks of pregnancy. THE MIND. A tranquil mind is of the first importance to the pregnant woman. Gloomy forebodings should not be encouraged. Pregnancy and labor are not, we repeat, diseased conditions. They are healthful processes, and should be looked upon as such by every woman. Bad labors are very infrequent. It is as foolish to dread them, as it is for the railway traveller to give way to misgivings in regard to his safety. Instead of desponding, science bids the woman to look forward with cheerfulness and hope to the joys of maternity. The bad effects of fear upon the mother's mind are illustrated by Plutarch, who, in his Life of Publicola, mentions that, 'at a time when a superstitious fear overran the city of Rome, all the women then pregnant brought forth imperfect children, and were prematurely delivered.' But we have already spoken, in treating of mothers' marks, of the influence of mental emotions over the unborn child, and the necessity of avoiding their exciting causes.