418 M. M. Garver—Sensation and Volition through the Nerves. 
about ;; of a second. And here is another peculiarity to 
which attention is particularly called, for it may serve to 
3. 
AN 
2 ¢ \7 Ol 7 Wy 18 la, 
Meche tT ESE, Ae SOR OR AN oF ES 9b Bg xX 
explain the anomalous results obtained in some particular 
ca he maxima in I (fig. 2) occur at 21 and 24, while in 
Il (fig. 3) they appear at 20 and 23, showing an evident change 
in the condition of the nerve. The observations in I were 
taken the day after those in I, otherwise the conditions were 
apparently the same. It is impossible to tell when the change 
took place or to tell the cause, but if such a change should 
occur during the time occupied in taking the observations, it 
is manifest that the results would be materially affected an 
the peculiar periodicity of the results more or less destroyed. 
more examples showing a periodicity will be given, 
but instead of plotting out in curves, it will be sufficient to 
indicate the groups by braces. The numbers at the right indi- 
approximately the difference between the means of the 
groups; 23 vibrations being equivalent to a little less than 3s 
of a second.* 
ae ee Is 
“Sightto “Sight to s rt «Bene to s Hoe to “Shoulder to 
. se hand.” hand.”* hand.” hand.” 
We-2: 19= “1t= 6 v= 16= 12 1 
20= 4 se ins Viz 
21=10 2I=1| 24° 19=11 19= 0 i8= 16=2 
=16 = 5 f vib 4 20= 0 19=10 w= 
23=12 tae. = 9 Sis 2 mal 18 24 
a= 4472-1 99-61 3 o9— a— 6) 7 19=5 + vip 
25=10) 25= 0 23— 7) Vo. 1 2 oo—140 
= 1° 96st 24— = 6) YP o3— 5 21=6 
27= 1 27> 2 2=— 0 = 24—- 4 22=% 
28= 1 =1 =0 26= 1 25= =3 
27= 2 =. ako 24=1 
pad © 28= 0 30— 1 25=0 
_* The exact rate of the fork during these experiments was 128-1 vibrations pe? 
6, the fork underwent 
