142 
DR. C. E. BEEVOR AND MR. V. HORSLEY ON THE EXCITATION OF THE 
of the ankle only) and 77 (where it was associated with movement of the small toes 
as well as of the ankle). 
Character of the Movement evoked. —Flexion was noted at 56, 77, 78, and extension 
at 63, 64, 69, 76; consequently, the representation of flexion is anterior to that of 
extension. It will be seen that the hallux is at the highest point {i.e., nearest the 
middle line) of the area only associated with the ankle and other toes. [Vide infra.) 
(24) Movements of the Small Toes. —The small toes were represented at 54, 63, 64, 
69, 70, 71, 76, 77, 78, 109, 110. 
At squares Nos. 109, 110, which were situated on the anterior frontier of the lower 
limb area, we obtained the unique movement of very slight extension of the second 
toe, which is homologous with the index linger. 
The primary movement of the small toes occurred on exciting squares Nos. 70, 71, 
54, 78, No. 70 being the point of intensest representation ; in fact, at 70 and 71 the 
small toes were the only segments which moved at all. See fig. 24, Plate 20. 
Character of Movement. —This was in all cases extension. See also “ Marches,” 
p. 143. 
(25) Movemoits of cdl Toes. —All the toes moved in synchronous association at 
scpiares 63, 64, 69, 76, the movement being invariably extension with separation of 
the digits. See also “Marches,” p. 143. 
(26) Movements of the Ankle. —The total of absolute representation of movements of 
the ankle is situated at squares 54, 55, 56, 60, 61, 62, 63, 64, 76, 77. 
The primary movement was obtained at squares Nos. 55, 60. At 60 it was the 
only movement, consequently this affords another instance of the unique character of 
the localisation in the Orang. See p. 152, and fig. 25, Plate 20. 
Character of Movement. —The nature of the movements observed was as follows :— 
Eversion obtained at squares No. 54. 
Dorsal flexion ,, ,, Nos, 55, 56, 76, 77. 
Plantar extension ,, 60, 61, 62, 63, 64. 
Inversion ,, No, 77 (observed only once on a repeated trial). 
(27) Movements of the Knee. —The representation of the knee was found at 
squares 54, 55, 61, 62, 63, 64, 68. See fig. 26. 
No primary movement was ol;)tained, as was evidently probable from the condition 
of representation in the Macacque of such a subordinate joint. 
Character of the Movement. —The movement was extension, except at square No, 68, 
where it was flexion. 
(28) Movements of the Hip. —-The total or absolute representation of the hip was 
found at the scjuares 48, 49, 50, 51, 52, 53, 61, 62, 63, 64, 65, 66, 68. 
Primary Movement. —Just as with the shoulder, so the cortical representation of 
the hip in the Orang is not only very extensive, see fig. 27, but also singularly 
