OF THE GALVANIC CURRENT ON THE MOTOR NERVES OF MAN. 
977 
1. The effect of kathodie make is greater than that of anodic make. 
With, the kathode, the polar region is kathodie; with the anode, the peripolar 
region is kathodie. The make excitation proceeds from the kathodie region, and the 
current density is greater in the polar than in the peripolar region; the effect at make 
of the kathodie is therefore greater than that at make of the anode. 
2. The effect of anodic break is greater than that of kathodie break. 
With the anode, the polar region is anodic; wifh the kathode, the peripolar region 
is anodic. The break excitation proceeds from the anodic region, and is greater when 
it is polar than when it is peripolar. 
3. The effect of kathodie make is increased during the flow of a kathodie current. 
Kathodie excitation and kathodie increased excitability are both of the polar region, 
and the effect is therefore greater with than without the kathodie current. 
4. The effect of anodic make is increased during the flow of an anodic current. 
Kathodie excitation and kathodie increased excitability are both of the peripolar 
region. 
5. The effect of anodic break is diminished during the flow of an anodic current. 
With the anode of the testing current the break excitation proceeds from the polar 
region which is anodic, and in which anodic influence is maintained by the remaining 
current. The break excitation thus falls on a region in which the excitability is 
depressed, and its effect is diminished or abolished. 
6. The effect of kathodie break is diminished during thefloio of a kathodie current. 
The break excitation falls on the peripolar region in which the excitability is 
depressed by the anodic influence of the remaining current. 
7. The increase in the effect of kathodie make during the flow of a kathodie current 
is greater than the increase in the effect of an anodic make during the flow of an anodic 
current. 
The kathodie increase is greater when it is polar than when it is peripolar, i.e., greater 
with the double kathode than with the double anode. 
8. The diminution in the effect of anodic break during the floiv of an anodic current 
is greater than the diminution in the effect of kathodie break during the flow of a 
kathodie current. 
The anodic diminution of excitability is greater when it is polar than when it is 
peripolar, i.e., the diminution is greater with the double anode than with the double 
kathode. 
Using the following abbreviations :— 
K.C.C. for the 
A.C.C. 
K.O.C. 
A.O.C. 
K.D. 
A.D. 
; • 
V 
kathodie closure contraction, 
anodic „ „ 
kathodie opening „ 
anodic „ „ 
kathodie current duration, 
anodic 
G i 2 
