when stimulation
frequency is increased--Fatigue under continuous stimulation 35

CHAPTER VI

PLANT RESPONSE--ON DIPHASIC VARIATION

Diphasic variation--Positive after-effect and positive
response--Radial E.M. variation 44

CHAPTER VII

PLANT RESPONSE--ON THE RELATION BETWEEN STIMULUS AND RESPONSE

Increased response with increasing stimulus--Apparent diminution
of response with excessively strong stimulus 51

CHAPTER VIII

PLANT RESPONSE--ON THE INFLUENCE OF TEMPERATURE

Effect of very low temperature--Influence of high
temperature--Determination of death-point--Increased response
as after-effect of temperature variation--Death of plant and
abolition of response by the action of steam 59

CHAPTER IX

PLANT RESPONSE--EFFECT OF ANAESTHETICS AND POISONS

Effect of anaesthetics, a test of vital character of
response--Effect of chloroform--Effect of chloral--Effect of
formalin--Method in which response is unaffected by variation
of resistance--Advantage of block method--Effect of dose 71

CHAPTER X

RESPONSE IN METALS

Is response found in inorganic substances?--Experiment on tin,
block method--Anomalies of existing terminology--Response by
method of depression--Response by method of exaltation 81

CHAPTER XI

INORGANIC RESPONSE--MODIFIED APPARATUS TO EXHIBIT RESPONSE IN
METALS

Conditions of obtaining quantitative measurements--Modification
of the block method--Vibration cell--Application of
stimulus--Graduation of the intensity of
stimulus--Considerations showing that electric response is
due to molecular disturbance--Test experiment--Molecular
voltaic cell 91

CHAPTER XII

INORGANIC RESPONSE--METHOD OF ENSURING CONSISTENT RESULTS

Preparation of wire--Effect of single stimulus 100

CHAPTER XIII

INORGANIC RESPONSE--MOLECULAR MOBILITY: ITS INFLUENCE ON RESPONSE

Effects of molecular inertia--Prolongation of period of recovery
by overstrain--Molecular model--Reduction of molecular
sluggishness attended by quickened recovery and heightened
response--Effect of temperature--Modification of latent
period and period of recovery by the action of chemical
reagents--Diphasic variation 104

CHAPTER XIV