194 RESPONSE IN THE LIVING AND NON-LIVING 
Faticur, absence of, under certain conditions, in metal, 120 
” 
- in muscle, 39 
- 4 in plant, 39 
apparent, with increased frequency of stimulation, in metal, 120 
* i P. in muscle, 40 
“. *p . in plant, 40 
diminution of response under strong stimulus due to, in plant, 57 
in metal, 118, 119, 185 
in muscle, 118, 185 
in plant, 20, 185 
» due to overstrain, 41 
rapid, under continuous stimulation in metal, 121, 130 
- - ie in muscle, 42, 130 
yp oe Es in plant, 42, 130 
removal of, by rest in plant, 43 
theory of, in muscle, 88, 185 
. 
HoLMGREN on retinal current, 149 
Hysteresis, 137 
Insury, current of, in nerve, 7 
Inorganic response. See Metal, electrical response in 
KUHNE on retinal current, 149 
Kunkel on electrical changes by injury or flexion in plant, 14, 70 
Liaut, after-effect of short exposure to, on photo-sensitive cell, 171 
39 
” 
» 5 on retina, 171 
decline and reversal of response under continuous, in photo- 
sensitive cell, 166 
- a continuous, in retina 
166 
effect of temperature on response of photo-sensitive cell produced 
by, 158 
43 + retinal response produced by, 158 
relation between intensity and response to, in photo-sensitive cell, 
161, 162 
3 A Ha in retina, 162 
response to, after-oscillation in photo-sensitive cell, 159, 163 
- effect of increasing length of exposure in photo-sensi- 
tive cell, 159 
ss Es _ in retina, 160 
a in frog’s retina, 150, 151, 156, 164, 166 
in photo-sensitive cell, 152, 153, 154, 155, 157, 165, 166 
