196 RESPONSE IN THE LIVING AND NON-LIVING 



NEGATIVE variation, response by method of, in metal, 87, 183 

 in nerve, 9, 183 



in plant, 18, 183 

 Nerve, current of injury in, 7 



injured and uninjured contacts corresponding to Cu and Zn in 

 voltaic couple, 8 



,, response in, abnormal, when stale, 124, 187 



,, abolition of, by ' poison,' 139, 189 



anaesthetics, effect of, on, 72 



by method of negative variation, 9 



current of action of, 8 



enhancement of, after continuous stimulation, 127 



,, modified, 128 



,, ,, relation between, and stimulus, 52 



reversed when stale, 11 



,, uniform, 184 



Nomenclature, anomalies of present, 9, 85 



PHOTOGRAPHIC recorder, 11, 22 

 Plant chamber, 64 



,, electrical response in, abnormal, when stale or dying, 48, 187 

 abolition of, by high temperature, 32, 64 



,, additive effect of stimulus on, 37 



anaesthetics, effect of, on, 30, 73, 74, 75 

 by method of block, 28 



,, ,, ,, of negative variation, 18, 183 



diphasic, 46 



fatigue, 20, 39, 40, 41, 42, 43, 57, 185. See also 



Fatigue 

 physiological character of, 30 



' poison,' effect of, on, 30, 32, 78, 79 



relation between, and stimulus, 52, 53, 54 



staircase effect, 37, 185 



stimulus, effect of single, on, 35 



,, ,, ,, effect of superposition of, on, 35 



,, temperature, effect of, on, 32 5 59-69 



,, uniform, 36, 184 



radial E.M. response in, 49 

 Poison, effect of, on response in metal, 143, 189 

 in nerve, 139, 189 



in plant, 30, 32, 78, 79, 189 



' molecular arrest ' in metal by, 145 

 ,, prolongation of recovery by action of, in metal, 145 

 in muscle, 144 



RECORD, simultaneous mechanical and electrical, of response, 13 

 Recorder, electrical, 11 



