198 RESPONSE IN THE LIVING AND NON-LIVING 



Response, electrical, molecular friction, effect of, on, 108, 109 



modification, effect of, on, 11, 48, 123, 125, 



129, 164, 187 



physiological character of, in plant, 30 



positive and negative, 11 



prolongation of recovery in, by ' poison ' in metal, 



145 

 prolongation of recovery in, by ' poison ' in muscle, 



144 



prolongation of recovery in, from overstrain, 106 



,, relation between, and stimulus in metal, 134, 135 



,, ,, in muscle, 52 



in nerve, 52 



in plant, 52, 53, 54 



in real and artificial 



retinae, 162 



staircase effect, in metal. 122, 186 



in plant, 37, 186 



stimulant, effect of, on, in metal, 141 



?, temperature, effect of, on. See Temperature 



,, threshold of, 135 



to light. See Light 



uniform in metal, 102, 184 



in nerve, 184 



> ,, ,, in plant, 36, 184 



,, universal applicability of, 12 



,. mechanical, 1 

 retinal. See Light 

 simultaneous mechanical and electrical record of, 13 



Ketina. See Light 



SANDERSON, BURDON-, on electrical response in sensitive plants, 14 



Spring-tapper, mechanical stimulus by, 23 



Staircase effect in metal, 122, 186 



in muscle, 122, 186 

 in plant, 37, 186 



Steiner on retinal response, 149 



Stimuli, maximum effect due to superposition of, in metal, 136 

 ,, in muscle, 36 



in plant, 36 



Stimulus, advantages of vibrational, 25 



,, and response, relation between, in metal, 134, 135 



in muscle, 52 



>, ,, in nerve, 52 



> in plant, 52, 53, 54 



, in real and artificial retinae, 162 



