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PREFACE. Agesilaus, king of Sparta, when asked what things boys should learn, replied, “Those which they will practise when they become men.” As health requires the observance of the laws inherent to the different organs of the human system, so not only boys, but girls, should acquire a knowledge of the laws of their organization. If sound morality depends upon the inculcation of correct principles in youth, equally so does a sound... more...

PREFACE. All diseases originate in the exuberance, deficiency, or retrograde action, of the faculties of the sensorium, as their proximate cause; and consist in the disordered motions of the fibres of the body, as the proximate effect of the exertions of those disordered faculties. The sensorium possesses four distinct powers, or faculties, which are occasionally exerted, and produce all the motions of the fibrous parts of the body; these are... more...

SECT. I. OF MOTION. The whole of nature may be supposed to consist of two essences or substances; one of which may be termed spirit, and the other matter. The former of these possesses the power to commence or produce motion, and the latter to receive and communicate it. So that motion, considered as a cause, immediately precedes every effect; and, considered as an effect, it immediately succeeds every cause. The MOTIONS OF MATTER may be... more...

THE UNTROUBLED MIND Canst thou not minister to a mind diseas’d,Pluck from the memory a rooted sorrow,Raze out the written troubles of the brain,And with some sweet oblivious antidoteCleanse the stuff’d bosom of that perilous stuffWhich weighs upon the heart? Macbeth. When a man tells me he never worries, I am inclined to think that he is either deceiving himself or trying to deceive me. The great roots of worry are conscience,... more...

THE RENEWAL OF LIFE Every human being must sooner or later know the facts concerning the origin of his life on the earth. One of the most puzzling questions is how and when such information should be given to the young. There is nothing the parent more desires than that his child should have a high ideal in regard to the sex-life and that he should live in accordance with that ideal, yet nowhere is careful and systematic education so lacking as... more...


CHAPTER I. BIOLOGY. In this chapter we propose to consider Life in its primitive manifestations. Biology is the science of living bodies, or the science of life. Every organ of a living body has a function to perform, and Physiology treats of these functions. Function means the peculiar action of some particular organ or part. There can be no vital action without change, and no change without organs. Every living thing has a structure, and... more...

CHAPTER I The Eye and Ear Injuries to the Eye—Inflammatory Conditions—"Pink Eye"—Nearsightedness and Farsightedness—Deafness—Remedies for Earache. CINDERS AND OTHER FOREIGN BODIES IN THE EYE.—Foreign bodies are most frequently lodged on the under surface of the upper lid, although the surface of the eyeball and the inner aspect of the lower lid should also be carefully inspected. A drop of a two-per-cent... more...

The Freedom of Life I AM so tired I must give up work," said a young woman with a very strained and tearful face; and it seemed to her a desperate state, for she was dependent upon work for her bread and butter. If she gave up work she gave up bread and butter, and that meant starvation. When she was asked why she did not keep at work and learn to do it without getting so tired, that seemed to her absurd, and she would have laughed if laughing... more...

MEDICAL AMULETS Among the various subjects which belong to the province of medical folk-lore, one of the most interesting relates to amulets and protective charms, which represent an important stage in the gradual development of Medicine as a science. And especially noteworthy among medical amulets are those inscribed with mystic sentences, words, or characters, for by their examination and study we may acquire some definite knowledge of the... more...

THE BODY-REPUBLIC AND ITS DEFENSE The human body as a mechanism is far from perfect. It can be beaten or surpassed at almost every point by some product of the machine-shop or some animal. It does almost nothing perfectly or with absolute precision. As Huxley most unexpectedly remarked a score of years ago, "If a manufacturer of optical instruments were to hand us for laboratory use an instrument so full of defects and imperfections as the human... more...