It should be added, in this place, both to confirm the foregoing sentiment, and to show that British mothers and nurses are not alone, that Dr. Dewees has witnessed, in the circle of his practice, four deaths from the same cause. If every physician in the United States has met with as many cases of the kind, in proportion to his practice, as Dr. D., the evil is about as great in this country as Dr. F. says it is in Great Britain. If a child sleeps alone, it cannot of course be liable to as much suffering of this kind as if it slept with another person; though much precaution will still be necessary to keep its head uncovered, and prevent its inhaling air spoiled by its own lungs and skin. 4. There is one more evil which will be avoided by having a child sleep alone. Many a mother has seriously injured her child by pressure. I do not here allude to those monsters in human nature, whose besotted habits have been the frequent cause of the suffocation and death of their offspring, but to the more careful and tender mother, who would sooner injure herself than her own child. Such mothers, even, have been known to dislocate or fracture a limb![Footnote: There may be instances where the debility of an infant will be so great that the mother or a nurse must sleep with it, to keep it warm. But such cases of disease are very rare.] To cap the climax of error in this matter, some mothers allow their infants to lie on their arm, as a pillow. This practice not only exposes them to all or nearly all the evils which have been mentioned, but to one more; viz. the danger of being thrown from the bed. A young mother, with whom I was well acquainted, was sleeping one night with her infant on her arm, when she made a sudden and rather violent effort to turn in the bed, in doing which she threw the child upon the floor with such violence as to fracture its little skull, and cause its death. Enough, I trust, has now been said to convince every reasonable young mother, where absolute poverty does not preclude comfort and health, that her child ought never to be permitted to sleep in the same bed with her; but that it should be placed on a bedstead by itself at a short distance from her, and properly guarded from accidents--and above all, from inhaling impure air. At a suitable age, a child may be removed from the nursery to a separate chamber. Here, if the circumstances permit, it should still sleep by itself; and if the bedstead be somewhat lower than ordinary, and the room be not too small, it will need no watching.