ILLUSTRATIONS
Reading edition
FIG.PAGE
1.Mechanical Lever Recorder3
2.Electric Method of Detecting Nerve Response6
3.Diagram showing Injured End of Nerve Corresponds to Copper in a Voltaic Element8
4.Electric Recorder11
5.Simultaneous Record of Mechanical and Electrical Responses13
6.Negative Variation in Plants19
7.Photographic Record of Negative Variation in Plants20
8.Response Recorder21
9.The Compensator22
10.The Spring-tapper23
11.The Torsional Vibrator24
12.Response in Plant to Mechanical Tap or Vibration25
13.Influence of Suddenness on the Efficiency of Stimulus26
14.The Method of Block28
15.Response in Plant completely Immersed under Water29
16.Uniform Responses in Plant36
17.Fusion of Effect under Rapidly Succeeding Stimuli in Muscle and in Plant36
18.Additive Effect of Singly Ineffective Stimuli on Plant37
19.‘Staircase Effect’ in Plant37
20.Appearance of Fatigue in Plant under Shortened Period of Rest39
21.Fatigue in Celery40
22.Fatigue in Cauliflower-stalk41
23.Fatigue from Previous Overstrain41
24.Fatigue under Continuous Stimulation in Celery42
25.Effect of Rest in Removal of Fatigue in Plant43
26.Diphasic Variation in Plant46
27, 28.Abnormal Positive Responses in Stale Plant transformed into Normal Negative Under Strong Stimulation48, 49
29.Radial E.M. Variation50
30.Curves showing the Relation between Intensity of Stimulus and Response in Muscle and Nerve52
31.Increasing Responses to Increasing Stimuli (Taps) in Plants52
32.Increasing Responses to Increasing Vibrational Stimuli in Plants53
33.Responses to Increasing Stimuli in Fresh and Stale Specimens of Plants54
34.Apparent Diminution of Response caused by Fatigue under Strong Stimulation57
35.Diminution of Response in Eucharis Lily at Low Temperature61
36.Records showing the Difference in the Effects of Low Temperature on Ivy, Holly, and Eucharis Lily62
37.Plant Chamber for Studying the Effect of Temperature and Anæsthetics64
38.Effect of High Temperature on Plant Response64
39.After-effect on the Response due to Temperature Variation66
40.Records of Responses in Eucharis Lily during Rise and Fall of Temperature67
41.Curve showing Variation of Sensitiveness during a Cycle of Temperature Variation68
42.Record of Effect of Steam in Abolition of Response at Death of Plant69
43.Effect of Chloroform on Nerve Response72
44.Effect of Chloroform on the Responses of Carrot74
45.Action of Chloral Hydrate on Plant Responses75
46.Action of Formalin on Radish75
47.Action of Sodium Hydrate in Abolishing the Response in Plant78
48.Stimulating Action of Poison in Small Doses in Plants79
49.The Poisonous Effect of Stronger Dose of KOH79
50.Block Method for obtaining Response in Tin83
51.Response To Mechanical Stimulation in a Zn-Cu Couple85
52.Electric Response in Metal by the Method of Relative Depression (Negative Variation)88
53.Method of Relative Exaltation89
54.Various Cases of Positive and Negative Variation90
55.Modifications of the Block Method for Exhibiting Electric Response in Metals93
56.Equal and Opposite Responses given by Two Ends of the Wire95
57.Top View of the Vibration Cell96
58.Influence of Annealing in the Enhancement of Response in Metals101
59.Uniform Electric Responses in Metals102
60.Persistence of After-effect105
61.Prolongation of Period of Recovery after Overstrain106
62.Molecular Model107
63, 64.Effects of Removal of Molecular Sluggishness in Quickened Recovery and Heightened Response in Metals109, 110
65.Effect of Temperature on Response in Metals111
66.Diphasic Variation in Metals113
67.Negative, Diphasic, and Positive Resultant Response in Metals115
68.Continuous Transformation from Negative to Positive through Intermediate Diphasic Response116
69.Fatigue in Muscle118
70.Fatigue in Platinum118
71.Fatigue in Tin119
72.Appearance of Fatigue due to Shortening the Period of Recovery120
73.Fatigue in Metal under Continuous Stimulation121
74.‘Staircase’ Response in Muscle and in Metal122
75.Abnormal Response in Nerve converted into Normal under Continued Stimulation124
76, 77.Abnormal Response in Tin and Platinum converted into Normal under Continued Stimulation125
78.Gradual Transition from Abnormal to Normal Response in Platinum126
79.Increase of Response in Nerve after Continuous Stimulation127
80, 81.Response in Tin and Platinum Enhanced after Continuous Stimulation127, 128
82.Magnetic Analogue132
83, 84.Records of Responses to Increasing Stimuli in Tin134, 135
85.Ineffective Stimulus becoming Effective by Superposition135
86.Incomplete and Complete Fusion of Effects136
87.Cyclic Curve for Maximum Effects showing Hysteresis137
88.Action of Poison in Abolishing Response in Nerve139
89.Action of Stimulant on Tin141
90.Action of Stimulant on Platinum142
91.Depressing Effect of KBr on Tin143
92.Abolition of Response in Metals by ‘Poison’143
93.‘Molecular Arrest’ by the Action of ‘Poison’145
94.Opposite Effects of Small and Large Doses on the Response in Metals146
95.Retinal Response to Light150
96.Response of Sensitive Cell to Light152
97.Typical Experiment on the E.M. Variation Produced by Light154
98.Modification of the Photo-sensitive Cell155
99.Responses in Frog’s Retina156
100.Responses in Sensitive Photo-cell157
101.Effect of Temperature on the Response to Light Stimulus159
102.Effect of Duration of Exposure on the Response159
103.Responses of Sensitive Cell to Increasing Intensities of Light161
104.Relation between the Intensity of Light And Magnitude of Response162
105.After-oscillation163
106.Transient Positive Increase of Response in the Frog’s Retina on the Cessation of Light164
107.Transient Positive Increase of Response in the Sensitive Cell165
108.Decline under the Continuous Action of Light166
109.Certain After-effects of Light168
110.After-effect of Light of Short Duration172
111.Stereoscopic Design for the Exhibition of Binocular Alternation of Vision176
112.Uniform Responses in Nerve, Plant, and Metal184
113.Fatigue in Muscle, Plant, and Metal185
114.‘Staircase’ Effect in Muscle, Plant, and Metal186
115.Increase of Response after Continuous Stimulation in Nerve and Metal186
116.Modified Abnormal Response in Nerve and Metal Transformed into Normal Response after Continuous Stimulation187
117.Action of the same ‘Poison’ in the Abolition of Response in Nerve, Plant, and Metal189