80 
DR. C. E. BEEVOR AND MR. V. HORSLEY ON THE EXCITABLE 
Summary of oAierages :— 
44 
42 
50 
50 
52 
53 
60 
64 
66 
66 
70 
70 
76 
77 
78 
78 
80 
Eyes open I 
Eyes turn J 
Mouth opens 
Head and eyes turn 
Head turns 
Tongue 
Angle of mouth 
Shoulder 
Elbow 
W rist 
Fingers I 
Thumb J 
Trunk 
Hip 
Ankle 
Knee 
Hallux ! 
Toes J 
Eye movements 
^ Head movements 
Upper limb movements 
Lower limb movements 
Further, if we state for each of these their relative positions to the whole of the 
capsule, we obtain figures which give the relative positions a,bsolutely as above 
shown by the numbers placed at the left hand side of the column. 
We draw attention by brackets to the association of parts in movement as already 
shown to occur in the cortex. 
Nothing, we believe, shows more distinctly the truth of our position that the 
arrangement in the capsule is but an imitation of that on the cortex, which in its 
turn is but a peripheric projection of the order of the metameres of the whole body. 
The accuracy of this general view is borne out by an analysis of the representation 
of the segments of one, the lower limb. In both the cortex and capsule the hip is 
most represented in front, the small toes hindermost (be., posterior to the hallux), and 
the other joints intermediately. Similarly, in accordance with the view of Schafer 
and Horsley"^' that the trunk muscles are represented mediately in the “ motor ” 
region, we find that in the capsule the representation of this part is, as a rule, 
between the upper limb and lower limb regions. 
For the upper limb the arrangement in the capsule is analogous to that for the 
lower limb, namely, the largest joint, the shoulder, is most anterior, and the smallest, 
the most specialised, the thumb, is most posterior. By dropping verticals in fig. 7, 
on p. 81, this is evidently the cortical arrangement projected below. 
* ‘Phil. Trans.,’ B, 1888, p. 9; ‘ Roy. Soc. Pi’oc.,’ vol. 36,1884, p. 437. 
