Page:Researches on Irritability of Plants.djvu/20

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ILLUSTRATIONS
xxi
figure
page
77.
Constancy of latent period under stimuli above the maximal
•          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •
 127
78, 79.
Effect of fatigue
•          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •
 128
80, 81.
Effect of temperature
•          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •
 130
82.
Determination of velocity of transmission of excitation in Mimosa
•          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •
 137
83, 84.
Determination of velocity by Differential Method
•          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •
 139, 140
85.
Effect of intensity of stimulus on velocity and after-effect
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 143
86.
Effect of optimum condition on velocity
•          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •
 145
87.
Effect of fatigue on velocity of transmission
•          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •
 147
88.
Effect of temperature on velocity
•          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •
 149
89.
Record giving transmission time in Biophytum
•          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •
 151
90.
Effect of cold in the retardation and arrest of transmission
•          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •
 162
91.
Arrangement for electrotonic block
•          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •
 165
92.
Record of effect of electrotonic block
•          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •
 166
93.
Records of transmitted excitation with the block off and on
•          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •
 167
94.
Effect of CuSO4 in abolishing conduction
•          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •
 172
95.
Abolition of conductivity by KCN
•          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •
 173
96.
Positive response followed by negative in Biophytum under indirect thermal stimulus
•          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •
 180
97.
Diphasic response in Biophytum under indirect chemical stimulation
•          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •
 182
98, 99.
Positive followed by negative in Averrhoa
•          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •
 184
100.
Diphasic response in Mimosa due to indirect electric stimulation of petiole
•          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •
 185
101.
Diphasic response in Mimosa due to indirect thermal stimulation of stem
•          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •
 186
102.
Effect of intensity of stimulus in modifying the diphasic response
•          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •
 187
103.
Effect of diminishing distance in transforming positive into diphasic response in Biophytum
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 189
104.
Effect of diminishing distance on the response in Mimosa
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 194
105.
Masking of the positive by the predominant negative
•          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •
 194
106.
Pohl's commutator
•          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •
 200
107.
Record of polar excitation under feeble current
•          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •          •
 202
108.
Excitation by ascending and descending current
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 204
109.
Records of responses to ascending and descending current in Mimosa
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 205
110.
Records of responses to ascending and descending induction-shock
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 206
111.
The Potential Slide
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 208
112.
The Potential Keyboard
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 210
113.
The electrode holder
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 217
114.
Excitation induced in Biophytum by the make of kathode and break of anode
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