INDEX 



175 



NEGATIVE variation, 4, 16 ; (abso- 

 lutely), 76. 



Nerve-skin preparation, 61 ; response, 

 100 ; muscle preparation, 92 ; by 

 ABC method, 95. 



Neivberry, Percy, on seeds, 8. 



Oehler on action of mercuric 



chloride, 83. 



Orange peel, current in, 86. 

 Osmotic pressure, 12, 134, 138. 



Pacini's law, 79. 

 Permanganate of potash, 125. 

 Photographic record, description of, 

 156; of current in retina, 26 (figs. 



10, II). 



Physiology, subject of, 2. 

 Plant currents by A B C plan, 94. 

 Plant-guillotine, 13 (fig. 4). 

 Polarisation currents, 48 ; positive, 73, 



89 ; in electrodes, 130. 

 Positive, absolutely, 76 ; polarisation, 



89. 



Properties of living matter, 3. 

 Protoplasm, mechanical excitability of 



vegetable, 12, 84, 85. 



Quinke currents, 133. 



RADIUM, luminosity of, 40. 



Raia, 79, 80. 



Reid, on eel's skin, 66. 



Resistance, 119, 133, 142, 167. 



Resistance of eyeball, 45. 



Resistance of seaweed, 141. 



Resistivity table, 168. 



Retina, currents of, 10 ; action of light 



on, 10, 11,37 ; action of anaesthetics 



on, 38 ; Engelmann on, 39. 



Roeberon. nerve-skin preparations, 61. 



S-SHAPED curve, 38. 



Sea- water, 168. 



Seaweeds, 141. 



Secreto-motor nerves, 99. 



Seeds, 5, 6 ; experiments on, 8, 19. 



Shocks, single, on eyeball, 45, 48. 



Signs of Life, 3. 



Skin currents, 60 ; by A B C plan, 94 ; 

 normal currents of, 60 ; (nerve) pre- 

 paration, 6 1 ; Roeber, Engelmann, 

 and Hermann on, 61 ; discharge, 82 ; 

 human, 86, 116, 117 (figs. 49, 50), 

 119. 



Solution-pressure, 18, 145, 146. 



Steiner (and Kiihne], on accidental 

 current of retina, 27. 



Stomach, frog's, 112. 



Strychnine sulphate, 127. 



Subcutaneous tissue, 86, 104. 



Subject of physiology, 2. 



Tarchanoj? 'on skin currents of human 



subject, 123. 

 Tetanisation of eyeball, 42 ; on effect 



of light, 44 (fig. 20). 

 Tongue, on frog's, in. 

 Torpedo, 78, 79, 80. 

 Types of response to light in case of 



retina, 29, 51. 



VEGETABLE protoplasm, mechanical 

 excitability of, 12 ; surface, 109. 



Vine-shoot, electrical effects of 

 mechanical excitation (fig. 5), 15. 



ZINCATIVE, use of term, 14, 17, 104. 



PRINTED BY OLIVER AND BOYD, EDINBURGH. 



