5. Stimulation of the union of the vertical and horizontal parts of the orbital convolution or frontal lobe, causes opening of the jaws and bending of head and neck. 6. Stimulation in the front of the union of the frontal and longitudinal convolutions, or at the union of the Sylvian and second parietal convolution causes rolling of the opposite eye. 7. Stimulation of union of the frontal and parietal parts of second parietal convolution leads to closure of both eyelids or, with a strong current, of lids on both sides. 8. Stimulation of the second parietal convolution, above and a little behind the extremity of the Sylvian fissure, causes opening of the eye and adduction of the ear on the opposite side, or, if a very strong current, on both sides. 9. Strong stimulation of the posterior part of the first and second parietal convolutions causes tonic convulsions. 10. Currents through the posterior parts of the third and fourth parietal convolutions gives similar convulsions with violent trembling of the trunk and members. In the =Dog’s Brain= localization is easily made by reference to the crucial fissure which passes outward, right and left, at right angles with the longitudinal fissure about the junction of its anterior with its middle third. Also by four parietal convolutions which run backward from near the crucial fissure, parallel with the longitudinal fissure. They are counted from without inward. Fritsch, Hitzig and Ferrier have mapped out the following motor areas: 1. The convolution in front of the outer end of the crucial sulcus controls the muscles of the neck. 2. The bend of the same convolution backward, opposite the outer extremity of the crucial sulcus, controls the extensors and adductors of the fore limb. 3. The convolution just behind the outer end of the crucial sulcus controls the muscles which flex and rotate the fore limb. 4. The same convolution behind the middle of the crucial fissure controls the movements of the hind limb. 5. The second convolution back of the crucial fissure controls the muscles of the face. 6. The anterior part of the internal (4th) parietal convolution, just back of the crucial fissure, controls the lateral switching movements of the tail. 7. The posterior angle of the first post-crucial convolution causes retraction and abduction of the fore limb. 8. The outer end of the first post-crucial convolution, directly behind the outer end of the sulcus, causes raising of the shoulder and extension of the fore limb. 9. The anterior end of the third parietal convolution (the second from the longitudinal fissure) controls closure of the eyelids, the rolling of the eyeball upward, and narrowing of the pupil. 10. Stimulation of the anterior end of the second parietal convolution causes partial opening of the mouth with retraction and elevation of its angle.