( 354 ) 
has been left out. We remark directly that the mean error is 
greatly diminished and has fallen from 0,25 to 0,08. 
TABLE IX. Ticerstept Versuch 28. I 
(The first observation has been rejected). 
Fig. 8. 
A = 10.7698 
B= 0.17784 
C = 40.463 
|E 
R| Eeale. | ae v 
42; 2.3756 2.6 | — 0.0244 
4A 5.0279 | 5.45] — 0.124 
46 6.7462 | 6.65) + 0.0962 
48 7.9498 7.8 | + 0.1498 
30 8.7940 8.9 | — 0.1060 
52 9.3854 9.45) — 0.0646" 
54 9.7994 9.8 | — 0.0006 
56 | 10.0859 10.45} — 0.0605 
58 | 10.2940 10.4 | — 0.1060 
60 |; 10.4359 10.5 | — 0.0641 
62 | 10.5354 10.6 | — 0.0606 
64 | 10.6054 | 10.65| — 0.0446 
66 | 10.6544 | 10.65) + 0.0044 
68 | 10.6888 | 10.7 | — 0.0112 
70 | 10.7430 {10.7 | + 0.0130 
75 | 10.7461 | 40.7 | + 0.0461 
so | 40.7597 |40.7 + 0.0597 
85 | 10.7634 | 10.75] + 0.0654 
> yp? = 0.09878 | 
Om = 9.08115 
Calculation shows that, in the case of an exceedingly feeble 
stimulus the response does not quite agree with the formula, though 
for all other stimuli, excepting only the minimum ones, this formula 
