CONTENTS x1 
CHAPTER VIII 
PLANT RESPONSE—ON THE INFLUENCE OF TEMPERATURE 
PAGH 
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 ANH STHETICS AND POISONS 
Effect of anzsthetics, a test of vital character of response—EKffect of 
chloroform—Effect of chloral—Effect of formalin—Method in 
which response is unaffected by variation-of resistance—Advantage 
of block method—FEffect of dose . el 
CHAPTER X 
RESPONSE IN METALS 
Is response found in inorganic substances?—Experiment on tin, block 
method—Anomalies of existing terminology—Response by method 
, 5 tel 
of depression— Response by method of exaltation . 
“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 experi- 
ment— Molecular voltaic cell 91 
