In many a secret place
Where rivulets dance their wayward round,
And beauty born of murmuring sound
Shall pass into her face.’”
Indoor Airings.—About out-of-door airings we shall have occasion to speak more fully; but indoor airings are truly as important, because, if the tissues be nourished upon impure blood for all the hours the child spends in the house, the mischief will not be mended in the shorter intervals spent out of doors. Put two or three breathing bodies, as well as fire and gas, into a room, and it is incredible how soon the air becomes vitiated unless it be constantly renewed; that is, unless the room be well ventilated. We know what it is to come in out of the fresh air and complain that a room feels stuffy; but sit in the room a few minutes, and you get accustomed to its stuffiness; the senses are no longer a safe guide.
Ventilation.—Therefore, regular provision must be made for the ventilation of rooms regardless of the feelings of their inmates: at least an inch of window open at the top, day and night, renders a room tolerably safe, because it allows of the escape of the vitiated air, which, being light, ascends, leaving room for the influx of colder, fresher air by cracks and crannies in doors and floors. An open chimney is a useful, though not a sufficient, ventilator; it is needless to say that the stopping-up of chimneys in sleeping-rooms is suicidal. It is particularly important to accustom children to sleep with an inch or two, or more, of open window all through the year—as much more as you like in the summer.
Night Air Wholesome.—There is a popular notion that night air is unwholesome; but if you reflect that wholesome air is that which contains its full complement of oxygen, and no more than its very small complement of carbonic acid gas, and that all burning objects—fire, furnace, gas-lamp—give forth carbonic acid gas and consume oxygen, you will see that night air is, in ordinary circumstances, more wholesome than day air, simply because there is a less exhaustive drain upon its vital gas. When the children are out of a room which they commonly occupy, day nursery or breakfast-room, then is the opportunity to air it thoroughly by throwing windows and doors wide open and producing a thorough draught.
Sunshine.—But it is not only air, and pure air, the children must have if their blood is to be of the ‘finest quality,’ as the advertisements have it. Quite healthy blood is exceedingly rich in minute, red disc-like bodies, known as red corpuscles, which in favourable circumstances are produced freely in the blood itself. Now, it is observed that people who live much in the sunshine are of a ruddy countenance—that is, a great many of these red corpuscles are present in their blood; while the poor souls who live in cellars and sunless alleys have skins the colour of whity-brown paper. Therefore, it is concluded that light and sunshine are favourable to the production of red corpuscles in the blood; and, therefore—to this next ‘therefore’ is but a step for the mother—the children’s rooms should be on the sunny side of the house, with a south aspect if possible. Indeed, the whole house should be kept light and bright for their sakes; trees and outbuildings that obstruct the sunshine and make the children’s rooms dull should be removed without hesitation.
Free Perspiration.—Another point must be attended to, in order to secure that the brain be nourished by healthy blood. The blood receives and gets rid of the waste of the tissues, and one of the most important agents by means of which it does this necessary scavenger’s work is the skin. Millions of invisible pores perforate the skin, each the mouth of a minute many-folded tube, and each such pore is employed without a moment’s cessation, while the body is in health, in discharging perspiration—that is, the waste of the tissues—upon the skin.
Insensible Perspiration.—When the discharge is excessive, we are aware of moisture upon the skin; but, aware of it or not, the discharge is always going on; and, what is more, if it be checked, or if a considerable portion of the skin be glazed, so that it becomes impervious, death will result. This is why people die in consequence of scalds or burns which injure a large surface of the skin, although they do not touch any vital organ; multitudes of minute tubes which should carry off injurious matters from the blood are closed, and, though the remaining surface of the skin and the other excretory organs take extra work upon them, it is impossible to make good the loss of what may be called efficient drainage over a considerable area. Therefore, if the brain is to be duly nourished, it is important to keep the whole surface of the skin in a condition to throw off freely the excretions of the blood.