Page:The American Journal of Psychology Volume 1.djvu/88

 82

HALL AND MOTORA:

The fourth table represents the ratio between the threshold and the numbers expressed in the third table. In that table it was necessary for an initial weight of 5 grammes to be differentiated to the amount of two and seventy-eight hundredths grammes in order that the difference should be perceived by H. N., and five is to this number as twenty to fifty-six hundredths, as is shown in Table IV.

Table V.

iVr

8 T2T

4 T¥TT

2 T#T

7.49 +7.38 —7.6

l

i 1 i TWO j TTO

H.B.N.

10.49 | 11.77 +10.4 +11.57 —10.59 j— 12.

6.12 +5.86 —6.40

4.07 +3.8 —4.36

H.N.

23.64 +24.32 —23.04

17.76

+17.28 —18.24

13.12 +12.64 —13.6

6.52 +6.12 —6.92

5.

+4.76 —5.24

4.3 +4.26 —4.34

E.H.B.

19.52 19.85 19.20

17.28 +17.60 —16.96

12.6 +10.88 —13.92

6.78 +6.13 —6.38

3.98 +3.7 —4.24

2.94

+2.98 —2.89

J. M.

20.45 +13.12 —29.46

18.24 +13.12 —23.36

7.92 +8.16 —7.68

4.68

+4.48 —4.88

4.24 +4.1 —4.38

8. +8.5 —7.5

Y.M.

21.95 +22.02 —21.88

14.59 | 12.96 +15.78 +14.5 —13.95 —11.37

9.32

+7.9 —10.38

9.14 +8.4 —9.76

6.8 +6.32 —7.56

6.6 +6.7 —6.5

C. H.

28.16 +30.72 —25.60

15.52 +16.32 —14.72

8.41 +8.16 —8.64

4.68 +4.88 —4.48

2.96

+2.84 —3.08

1.52 +1.6 —1.44