86 
INDUCTION SHOCKS 
Z, obtained in any such experiment, represent the true 
relative values of the stimuli used within one-third. 
TABLE X 
Illustrating Tendency of Z and ft to vary together, 
trocnemii stimulated directly 
Frogs' Gas- 
Date. 
Secondary 
resistance. 
Value of A. 
Value 
ofZ. 
Value 
of/3. 
Ratio 

z' 
Feb. 24, 1910 
C,4OO 
6,900 
6 12 
3-4 
.56 
Oct 28, 1909 
6, coo 
6 ooo 
6 24. 
3O 
48 
Dec is, IQOQ 
2,100 
c.ooo 
II O 
7 7C 
62 
Jan. 19, 1910 
8,400 
4,800 
12 2 
4 4^ 
.36 
Feb. 17, 1910 
6,800 
7, coo 
12 3C 
6 c 
- ^2 
Feb. 24, 1910 
6,400 
4,200 
12 . C 
A.QC 
.40 
Feb 18, 1910 
C.OOO 
4,800 
12 7 
6 2 
4Q 
Tan 31, IQIO 
11,400 
I 3, COO 
12 QC 
7 
CA 
Mar. 7, 1910 
Feb. 18, 1910 
Nov 18, 1909 
54oo 
5.500 
7,7oo 
4,800 
5.500 
42OO 
I 4 .6 
I 4 .6 
1C 2C 
6.86 
7-3 
540 
47 
50 
3C 
Feb 10, 1910 
13,000 
6,000 
16 8 
c 30 
72 
Jan. 31, 1910 
Dec. 13, 1909 
10,400 
c.ooo 
9,000 
c.ooo 
19.2 
IQ.Q 
8.90 
0.06 
$ 
. so 
Jan. 31, 1910 
6,200 
10,500 
22 . I 
13.0 
.63 
Feb 18, 1910 
c.ooo 
4,800 
22 8 
II 2 
4-0 
Feb. 17, 1910 
6,000 
10,500 
24 7 
ic 7 
64 
Nov. 4, 1909 
3,200 
2,600 
41 . c 
18.6 
At 
Average 
40 
In a series of ten experiments on frogs' gastrocnemii 
stimulated through the sciatic, with resistances ranging 
from 6300 to 38,000 ohms, and values of A from 6000 to 
23,000, the ratio of to Z averaged .48, and the widest 
variation was a ratio of .28, amounting to 42 per cent, 
the average variation being 20 per cent. In the experi- 
ments cited in the two series above no attempt was 
