II. Inferior antero-frontal or orbital region (5 cases).—From the anterior tip of hemisphere at the base backward to the optic chiasm and Sylvian fissures.
III. Rolandic region or motor cortex (15 cases).—From antero-frontal region backward nearly to mid-parietal lobe, including posterior thirds of superior middle and inferior frontal convolutions, ascending frontal and ascending parietal convolutions, and anterior extremities of superior and inferior parietal convolutions—lateral and median aspects.
IV. Centrum ovale, fronto-parietal region (5 cases).
V. Postero-parietal region (5 cases).—From Rolandic region to parieto-occipital fissure, including posterior two-thirds of the superior and inferior parietal convolutions and the præcuneus.
VI. Occipital region (9 cases).—Occipital lobe—cortex and centrum ovale.
VII. Temporo-sphenoidal region (4 cases).—Temporo-sphenoidal lobe.
VIII. Basal ganglia and adjoining regions (19 cases).—Caudate nucleus, lenticular nucleus, optic thalamus, internal capsule, corpora quadrigemina, and ventricles except the fourth.
IX. Cerebellum (9 cases).
X. Floor of fourth ventricle (6 cases).—(Directly or indirectly involved.)
XI. Pons varolii and medulla oblongata (8 cases).