ERRATA 



Page 34 ; line 5. For " Separates it " read " Separates the 

 foliage." 



Page 57 ; line 1. For " 2,000 " and " 40 " read " 200 " 

 and " 400." 



Page 95 ; line 2. For " 15 and 5 " read " 5 and 15." 

 Page 98 ; line 5. For " points are " read " points is." 



Page 119 ; fig. 31. For " controsphere " read " centro- 

 sphere." 



Page 143 ; line 29. For " Gynostemium " read " Gymnos- 

 temium." 



Page 169 ; line 20. For " SO 4 " read " SO 8 ." 



Page 172. Inverted commas should commence on line 

 80, after " subject." 



Page 173 ; line 20. For " to the lower thigh-bone " read 

 " to the leg bone." Line 28 : For " upper and lower thigh- 

 bones " read " upper and lower bones." 



PART II 

 STUDIES IN ELECTRO-PHYSIOLOGY: 



REVIEW OF ELECTRO-PHYSIOLOGICAL RESEARCH 49 



CAUSES WHICH HAVE CONTRIBUTED TO ERROR 54 



THE NATURE OF THE NERVE IMPULSE - - 73 



INDUCTIVE CAPACITY - - 91 



CELL REPRODUCTION - - 108 



ix 



