34 
was excluded in the following proofs, takes place beside the motion 
function. 
Number of seconds with resistance in percentage of that without inhibition. 
ee ee eee en 
| 
Dynamom. Clenching the 
Subject. en Foot Pressure. | ig 
H. 120.0 100.0 106.7 
128.6 107.1 114.3 
100.0 100.0 94.1 
118.8 100.0 100 0 
D. 140.0 106.7 120.0 
135.8 100.0 100.0 
118.8 108.3 106.3 
131.3 106.3 106.3 
G. 123.5 105.9 | 111.8 
111.1 94.4 | 105.6 
117.6 105.9 | 105.9 
123.5 105.9 | 111.8 
The subject was requested to make as many strokes as possible. 
The number of strokes in 15 seconds was counted. These experiments 
were repeated twice, on the first occasion the dynamometer was 
squeezed continuously as tightly as possible, and the pressure was 
accurately registered on a kymograph: in the third instance the 
dynamometer was continuously pressed forcibly with the right foot, 
and the pressure was registered once more. To secure the same 
conditions the dynamometer was constantly held in the left hand, 
in each case including those in which it was not squeezed. In this 
way it is possible to ascertain, whether a disturbing influence affects 
the pressure of the hand, and the foot on the dynamometer in 
writing down strokes, and whether this pressure disturbs the latter. 
The disturbing influence of the pressure movement can reveal itself 
in the diminished number, but also in the irregular pressure. This 
can be registered by making use of the pen of Henri with which 
the pressure of each stroke act can be measured. 
Experiments were performed on three individuals on nine succes- 
sive days. 
