xxii CONTENTS. 



PAGE 



536. The narrow limits within which the bodily temperature is main- 

 tained 854 



537. Abnormally high temperatures, pyrexia 855 



538. The effects of great heat 856 



539. The effects of great cold 858 



540. Hibernation 858 



SECTION III. 

 ON NUTRITION IN GENERAL. 



541. The general features of metabolism 861 



542. The metabolism of muscle as typical of the metabolism of tissues ; 



the nature of the food of muscle 862 



543. The relations of metabolism to the structural features of muscle . 864 



544. The fate of the lactic acid produced by muscle .... 865 

 545. A comparison of the metabolism of muscular tissue with that of 



other tissues 866 



546. Proteid substance the pivot of metabolism 867 



547. Influences determining nutrition ; the influence of food . . . 867 

 548. The influence of nerves on metabolism ; katabolic and anabolic 



nerves 868 



549. The influence of the nervous system on the general nutrition of the 



tissues. The phenomena of disease &c. ; trophic nerves . . 869 



SECTION IV. 

 ON DIET. 



550. The normal diet, statistical and experimental 873 



551. The necessity for all three food-stuffs, proteids, fats and carbo- 

 hydrates. The necessity and importance of salts including 



extractives ; alcohol, &c 875 



552. The chemical value of articles of food to be corrected by their 



digestibility 878 



553. The physiological value of a purely vegetable diet .... 879 

 554. The modifications of a normal diet needed to meet variations in size 882 

 555. The modifications of a normal diet needed to meet changes of climate 883 

 556. The modifications of a normal diet needed to promote or prevent 



fattening 884 



557. The modifications of a normal diet needed to meet muscular and 



mental labour , 885 



