JARVIS'S PRACTICAL PHYSIOLOGY. 415 



CHAPTER IX. 



-4. 



517. What three offices does the skin perform? 



518. Do the functions of the skin require the aid of clothing? 



519. What is the practical view of the case? 



520. Do all parts of the skin protect equally well ? 



521. What illustration is drawn from the dress of the two sexes ? 



522. What from the Indian? From the Highlander? 



523. 524, 525. Give the facts and the conclusions to which they lead. 



526. What practical suggestions are given ? 



527. What effects do habits of dress in different periods of life pro- 

 duce? 



CHAPTER X. 



528. 529, 530. What, besides habit, should influence the amount of 

 clothing? 



531. Can a general rule be given? 532. What general directions? 

 533., What are the effects of too little clothing? 



534. What power comes from habitual exposure ? 



535. Can all persons acquire this power suddenly ? 



536. Why do infancy and old age require more clothing than the 

 middle period of life? 



537. How can even the feeble gain their power of endurance? 



CHAPTER XI. 



538. What qualities should clothing possess ? 



539. Why are loose garments warmer than tight? 



540. What are the objections to inner garments of linen ? 



541. What are the good qualities of cotton ? 



542. What qualities has silk for inner garments ? 



543. What qualities recommend woollen garments? What bad ef- 

 fects on some 1 ? 



544. Against what should the skin be guarded? What is the best 

 protection ? 



CHAPTER XII. 



545 What fact proves the good effects of flannel ? 



546. What other measures were used for the health of seamen ? 



547, 548, 549. What do inner garments retain ? 

 550, 551 What changes should be practised ? 



552. How should beds and bed-clothes be treated ? 



553. What objectionable practice prevails on board canal-boats ? 



554. What injurious necessity exists in some dwellings ? 



CHAPTER XIII.. 



555. What change of the cuticle goes on constantly? 



556. What effect of the warm bath is mentioned ? 



557. What neglect are many persons guilty of? 



