196 RESPONSE IN THE LIVING AND NON-LIVING 
NEGATIVE variation, response by method of, in metal, 87, 183 
” 
” 
- in nerve, 9, 183 
3 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 
99 
9 
abolition of, by ‘ poison,’ 139, 189 
anesthetics, 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 
9 
9 
” 
electrical response in, abnormal, when stale or dying, 48, 187 
abolition of, by high temperature, 32, 64 
additive effect of stimulus on, 37 
anesthetics, 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, 82, 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, 59-69 
uniform, 36, 184 
9 
radial E.M. response in, 49 
Poison, effect of, on response in metal, 143, 189 
” 
” 
$5 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 
” 
5 ‘a in muscle, 144 
REcorRD, simultaneous mechanical and electrical, of response, 13 
Recorder, electrical, 11 
