TABLE OF CONTENTS. 



Page. 



I. On the source of the vital properties, . . .1 



II. On the reflex faculty, .... 5 



III. On the influence of the nervous system upon organic life, . 



IV. On the reparative power of the nervous system, . 17 

 V. On turning and rolling produced by injuries of the nervous 



system, . . . . . .18 



VI. On a means of measuring degrees of anaesthesia and 



hyperoesthesia, . . . . .23 



VII. On the causes of the torpidity of the tenrec, . .25 



VIII. On the influence of poisons upon animal heat, as a cause 



of death, ..... 26 



IX. Action of cold, warmth and light upon the crystalline lens, 29 

 X. On the normal degree of the temperature of man, . 30 



XI. Influence of the temperature of one extremity on the tem- 

 perature of the body, . . . . 32 



XII. Coagulability of blood, and its circulation in frogs, after 



heart has been cut, . . . .35 



XIII. On a singular case of animal graft, . . .30 



XIV. On a convulsive affection produced by injuries of the 



spinal cord, . . . . .36 



XV. On the relations between the organization of nerve-tubes 



and their vital properties, . . . 38 



XVI. On the persistence of life in animals deprived of their 



medulla oblongata, . . . . .40 



XVII. Influence of the degree of animal heat on asphyxia, . 45 



XVIII. On the central seat of sensibility, and on the value of cries 



as a proof of pain, . . . . .54 



XIX. On the mode of action of the most active poisons upon the 



nervous system, . . . . .57 



XX. On the crossing of action in the transmission of impres- 

 sions in the spinal cord, . . . .63 



