. A treatise on anatomy, physiology and hygiene : designed for colleges, academies and families. en productive of serious and permanent evil. The* bandy or bow legs are thus produced. What effect has modeTate, regular labor upon the growing youth?!31. What remark respecting the kind and amount of labor ? At what ageare the bones best htted for labor ? 132. What effect has long-continuedexertions or positions on the bones of a child ? What is said of the requi-sitions of some teachers, who have the famed quiet schools ? 133, Whyshould not the child be induced to stand or walk^either naturally o
. A treatise on anatomy, physiology and hygiene : designed for colleges, academies and families. en productive of serious and permanent evil. The* bandy or bow legs are thus produced. What effect has modeTate, regular labor upon the growing youth?!31. What remark respecting the kind and amount of labor ? At what ageare the bones best htted for labor ? 132. What effect has long-continuedexertions or positions on the bones of a child ? What is said of the requi-sitions of some teachers, who have the famed quiet schools ? 133, Whyshould not the child be induced to stand or walk^either naturally or artifi-cially, at too early an age ? KYGIKNE OF THE BONES. 55 lo4. Tlie henches or chairs for children in a school-roomshould be of such a height as to permit the feet to rest on .^efoor,.f the bench is so h*igh as not to permit the feet to rest uponthe floor, the v/eight of the limbs below the knee may cause[lie flexible bose of the thigh to become curved. The childthus seated, is inclined «lo lean forward, contracting an injuri-ous and ungraceful habit. Again, when the fast are not sup-. Fig. Q?. The position assumed when the seat is of proper height, and the feeBupported. Fig. 30. The position a child naturally assumes when the seat is so iiigh that thefeet are not snpporteci. ported, the child soon becomes exhausted, restless, and unfitfor study. In the construction of a school-room, the benchesshould be of different heights, so as to be adapted to the dif-ferent pupils, and they should also have appropriate backs. 134. ^\^lat IS said of the benches or chairs in a school-room? What isrepresented by fig. 29 ? By fig. 30 ? ?\^Tiat is the effect when the lowerKmbs are not supported ? 56 ANATOMY, PHYSIOLOGY, AND HYGIENE 185. Compression of the chest should he avoided. In chil-dren, ai^d also in adults, the ribs are very flexible, and a smallamount of pressure will increase their curvature, particularly atthe lower part of the chest, and ^thus lessen the size of thiscavity. T
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