When a baby knits his brows he is not puzzling over his political chances or worrying about his immortal soul. He has got a pain somewhere in his little body. When his vocal organs emit sounds, whether the gurgle or coo of comfort, or the yell of dissatisfaction, they are just squeezed out of him by the pressure of his own internal sensations, and he is never talking just to hear himself talk. Further than this, his color is so exquisitely responsive to every breath of change in his interior mechanism, that watching his face is almost like observing a reaction in a test-tube, with its precipitate, or change of color. In addition, not only will he turn pale or flush, and his little muscles contract or relax, but so elastic are the tissues of his surface, and so abundant the mesh of blood-vessels just underneath, that, under the stroke of serious illness, he will literally shrivel like a green leaf picked from its stem, or wilt like a faded flower.
A single glance at the tiny face on the cot pillow is usually enough to tell you whether or not the little morsel is seriously ill. Nothing could be further from the truth than the prevailing impression that, because babies can't talk, it is impossible, especially for a young doctor, to find out what is the matter with them. If they can't talk, neither can they tell lies, and when they yell "Pin!" they mean pin and nothing else.
In fact, the popular impression of the puzzled discomfiture of the doctor before a very small, ailing baby is about as rational as the attitude of a good Quaker lady in a little Western country town, who had induced her husband to subscribe liberally toward the expenses of a certain missionary on the West Coast of Africa. On his return, the missionary brought her as a mark of his gratitude a young half-grown parrot, of one of the good talking breeds. The good lady, though delighted, was considerably puzzled with the gift, and explained to a friend of mine that she really didn't know what to feed it, and it wasn't quite old enough to be able to talk and tell her what it wanted!
CHAPTER IV
COLDS AND HOW TO CATCH THEM
Ancient vibrations are hard to stop, and still harder to control. Whether they date from our driving back by the polar ice-sheet, together with our titanic Big Game, the woolly rhinoceros, the mammoth, and the sabre-toothed tiger, from our hunting-grounds in Siberia and Norway, or from recollections of hunting parties pushing north from our tropical birth-lands, and getting trapped and stormbound by the advance of the strange giant, Winter, certain it is that our subconsciousness is full of ancestral memories which send a shiver through our very marrow at the mere mention of "cold" or "sleet" or "wintry blasts."
From the earliest dawn of legend cold has always been ranked, with hunger and pestilence and storm, as one of the demons to be dreaded and fought. And, at a little later date, the ancient songs and sayings of every people have been full of quaint warnings against the danger of a chill, a draft, wet feet, or damp sheets. There is, of course, a bitterly substantial basis for this feeling, as the dozens of stiffened forms whose only winding-sheet was the curling snowdrift, or whose coffin the frozen sleet, bear ghastly witness. It was, however, long ago discovered that when we were properly fed and clothed, the Cold Demon could be absolutely defied, even in a tiny hut made out of pressed snow and warmed by a smoky seal-blubber lamp; that the Storm King could be baffled just by burrowing into his own snowdrifts and curling up under the crust, like an Eskimo dog. Hence, nearly all the legends depict the hero as finally conquering the Storm King, like Shingebis in the Song of Hiawatha.
The ancient terror, however, still clings, with a hold the more tenacious as it becomes narrowed, to one large group of these calamities believed to be produced by cold,—namely, those diseases supposed to be caused by exposure to the weather. Even here, it still has a considerable basis in fact; but the general trend of opinion among thoughtful physicians is that this basis is much narrower than was at one time supposed, and is becoming still more restricted with the progress of scientific knowledge. For instance, fifty years ago, popular opinion, and even the majority of medical belief, was that consumption and all of its attendant miseries were chiefly due to exposure to cold. Now we know that, on the contrary, abundance of pure, fresh, cold air is the best cure for the disease, and foul air and overcrowding its chief cause. An almost equally complete about-face has been executed in regard to pneumonia. Prolonged and excessive exposure to cold may be the match that fires the mine, but we are absolutely certain that two other things are necessary, namely, the presence of the diplococcus, and a lowered and somewhat vitiated state of bodily resistance, due to age, overwork, underfeeding, or over-indulgence in alcohol.
Not only do these two diseases not occur in the land of perpetual cold, the frozen North, except where they are introduced by civilized visitors,—and scarce a single death from pneumonia has ever yet occurred in the crew of an Arctic expedition,—but it has actually been proposed to fit up a ship for a summer trip through the Arctic regions, as a floating sanatorium for consumptives, on account of the purity of the air and the brilliancy of the sunlight.