Nor will many of them bore their noses into their books, or sprawl all over their copy books when they write, unless the light is poor, or they have some defect of the eyes which has not been corrected by proper glasses.

A bad position or a bad carriage in a child is a sign of ill health, and should be treated by the removal of its cause.
Curvatures--Their Cause and Cure.

There are various forms of curvatures, or bendings, of the spine which are supposed to be owing to faulty positions of sitting or of carrying the body.

There is wide difference of opinions as to their cause; but this all are agreed on, that they practically never occur in sturdy, well-grown, active children; and the way that they are now corrected is by careful systems of balancing, muscular exercise, open-air life, and abundant feeding, instead of using steel braces, or jackets, or schoolroom drills.
[Illustration: THE POSITION OF THE BODY IS AN INDEX TO ITS HEALTH Note the pupil in the second row who evidently needs eye glasses.] Much the same is true of other deformities and defects of the body, as, for instance, round shoulders, or "flat-foot," or even such serious ones as "club-foot" and "bow-legs." Nearly all these are caused by the weakness or wrong action of some muscle, or groups of muscles.

If this be long continued or neglected, the bones--which, you will remember, were made by the muscles in the first place--will be warped out of shape.