OF THE GALVANIC CUEEENT ON THE MOTOE NEEVES OF MAN. 
983 
Tracings C and D. 
Tracing C. 750 ohms additional resistance. 
Cells. 
m.w. 
a. 
K.C.C. 
5 
b. 
K.D. 
13 
c. 
K.C.C. 
5-5 
d. 
Interval. 
e. 
K.C.C. 
5-5 
Tracing D; 5000 ohms additional resistance. 
Cells. 
m.w. 
a. 
K.C.C. 
5 
\b. 
K.D. 
13 
c. 
K.C.C. 
5 
d. 
Interval. 
6. 
K.C.C. 
5 
The comparison of series (c) in the two preceding figures shows that unless a considerable resistance 
be added in circuit, the after-kathodic diminution may be masked owing to an increase of current - 
strength. 
The following statements (the letters have the same meaning as at page 972) summarise 
the results of our experiments on the peroneal nerve, with the precautions taken of an 
approximate galvanometric control and of an additional resistance of from 10,000 to 
zO,000 ohms in circuit. This being about six to twelve times the resistance of the 
body, the possible effects of physical change were divided by so much, and the effects 
of altered excitability practically disengaged from the fallacy. The cases in which we 
have proved d fortiori the physiological nature of the change are marked with an 
asterisk (*) in table of after-effects by the galvanic test. 
G K 
MDOCCLXXXII. 
