119 by a clot of blood in the iter ad quartum ventriculum. In a case in which there was effusion of blood in many parts of the two sides of the brain, Blain des Cormiers44 found the left arm paralysed. In an interesting case of Gintrac's45 there were two lesions; one in the left hemisphere, chiefly in the corpus striatum, which was extremely softened (a reddish pulp) ; the other in the right side, consisting in a considerable softening of the whole half of the pons Varolii. The left arm was

more »

... e paralysed for some time. As regards the leg, the best case I know is one by Bouillaud,46 who found that at times the left leg was paralysed. There were numerous tubercles in both hemispheres. In all those cases, although there was a lesion in the two sides of the brain, there was paralysis only in one half of the body, and that paralysis was limited to one arm or to one leg. Is it possible, in presence of such facts, to maintain that paralysis, when it appears in brain disease, depends on the loss of function of the part diseased? Clinical Lectures