ric, 
ILLUSTRATIONS 
PAGE 
MecuHanicaL Lever RECORDER f 3 : ; ; : 3 
Exectric MrerHop oF Detecting NERVE RESPONSE a ee 6 
DIAGRAM SHOWING INJURED END oF NERVE CORRESPONDS TO 
Copper IN A VOLTAIC ELEMENT : : : : : 8 
Eecrric RECORDER . ; : ‘ : : : te al 
SimuLtaNgous Record oF MECHANICAL AND ELECTRICAL 
RESPONSES . : : F . E : : : » ws 
NEGATIVE VARIATION IN PLANTS ; : : ; Pa ie yee i!) 
PuorocRaPHic Record or NEGATIVE VARIATION IN PLANTS 20 
Response RECORDER ‘ ; Brags é : : a BAL 
THE COMPENSATOR. i ; : : ? : Siro ae 
THE SPRING-TAPPER ; : : : 3 ; : . 2 
Tue Torsional VIBRATOR. : ‘ : ; : ee go! 
RESPONSE IN PLANT TO MecHanicaL TAP OR VIBRATION . 25 
INFLUENCE OF SUDDENNESS ON THE EFFICIENCY OF STIMULUS 26 
Tue Meruop or Broce. 5 ; : : Zé ; 2 28 
RESPONSE IN PLANT COMPLETELY IMMERSED UNDER WATER 29 
UnirormM RESPONSES IN PLANT : ; ; ; tJ FOO 
Fusion oF EFFECT UNDER RAPIDLY SUCCEEDING STIMULI IN 
MUSCLE AND IN PLANT ; F . 5 : : ; 36 
AppitivE EFFECT oF SINGLY INEFFECTIVE STIMULI ON 
Pranr  . ; 4 : d : A : E aoe 37 
b) 
‘SratRcAsE EFFECT’ IN PLANT : . : : ; - 7 38 
APPEARANCE OF FATIGUE IN PLANT UNDER SHORTENED 
Periop oF Rest. : : F 3 ‘ : “ies £9 
