INDEX 



141 



kinds of, 58; electrical changes 

 in, 5, 12, 13; function of, 6; 

 functional changes in, 7; heat 

 formation in, 7, 50; lack of 

 visible sign of vitality in, 7; 

 longevity of isolated, 24; meta- 

 bolic gradient in, 72; metabol- 

 ism on stimulation, 55; oxygen 

 consumption by, 53; physical 

 changes in, 7; production of 

 acid in, 25; property of, 6; 

 resting metabolism in, 22; 

 structural changes, 7; struc- 

 tural gradient in, 75; use of 

 isolated, 23. 



Nerve impulse, 6; direction of, 

 72; direction of, and metab- 

 olic gradient, 77; effect of 

 salt on, 82; effect of tempera- 

 ture on, 83; nature of, 85; 

 nature of material basis of, 107; 

 velocity of, 8; velocity of, and 

 resting metabolism, 80. 



Nitrogen, electrical response in, 

 45- 



Non-medullated nerve, 18. 



Nucleus, cell, on oxidation, 16. 



Oculomotor nerve. See Nerve. 



Olfactory nerve. See Nerve. 



Optic nerve. See Nerve. 



Organic compounds, 22. 



Osterhout, 92. 



Oxidation : measure of, see Metab- 

 olism; role of nucleus on, 16. 



Oxygen: as essential to life, n; 

 atmospheric, 15; consumption 

 by brain, 36; consumption by 

 linseed oil, 35; consumption by 

 nerve fibers, 53; consumption 

 by stimulated nerve, 50, 53; 

 consumption under anesthesia, 

 60; deficiency of, on nerve me- 

 tabolism, 27; discovery of, n; 

 role of, on excitability, 54, 60; 

 role of, in salt stimulation, 26. 



Painting, chemical process in, 34. 

 Peas, 31. 



Permeability, 81, 103. 



Plants: differentiation from ani- 

 mals, 2; electrical response in, 

 5; resemblance to animals, 2; 

 response in, 2. See also Seed. 



Pneumatic spirit, n. 



Positive phase, 13. 



Positive response, influence of 

 carbon dioxide on, 14. 



Potassium chloride, 42. 



Potassium cyanide, 75. 



Priestly, n. 



Propagation, of excitability. See 

 Nerve impulse. 



Proteins, 10. 



Protoplasm, 48; physical condi- 

 tion in, 8. 



Protoplasmic respiration, 35. 



Psychic change, 3. 



Psychic life, evolution of, 2; in 

 child, 2; in seed, 3; physical 

 basis of, 3. 



Psychic process, physical process, 

 accompanying, 4. 



Psychism, 3; indirect measure of, 



6. 

 Psychometer, 3. 



Rabbit. See Carbon dioxide pro- 

 duction. 



Raia erineda. See Carbon diox- 

 ide production. 



Raia ocallata. See Carbon dioxide 

 production. 



Ramus lateralis accessorius. See 



Nerve. 

 Ramus lateralis vagis. See Nerve. 



Rana esculenta. See Carbon di- 

 oxide production. 



Rana pipiens. See Carbon dioxide 

 production. 



Rana temporaria. See Carbon 

 dioxide production. 



Rat. See Carbon dioxide pro- 

 duction. 



