Lectures on localization in diseases of the brain, delivered at the Faculté de médecine, Paris, 1875 . ect peduncular fibres, after their disappearancein the diverging fibres, spread indifferently to all parts of thehemisphere, or are they assigned to special departments ofthe gray cortex ? The facts which I have collected towardsthe study of that question plead in favor of the last hypothe-sis. These observations, collected for me at the Hospital ofSaltp^trifere during the last fifteen years, relate to cases of Archiv fur Psychiatrie, Bd. II., 1870, pi. VIII.° Archives de physiologic, 1875.
Lectures on localization in diseases of the brain, delivered at the Faculté de médecine, Paris, 1875 . ect peduncular fibres, after their disappearancein the diverging fibres, spread indifferently to all parts of thehemisphere, or are they assigned to special departments ofthe gray cortex ? The facts which I have collected towardsthe study of that question plead in favor of the last hypothe-sis. These observations, collected for me at the Hospital ofSaltp^trifere during the last fifteen years, relate to cases of Archiv fur Psychiatrie, Bd. II., 1870, pi. VIII.° Archives de physiologic, 1875. 1^2 DISEASES OF THE BRAIN. long-standing ischsemic softening.^ The lesions in these casesappeared as yellow patches of variable size, extending moreor less deeply into the subjacent white substance and occu-pying the most diverse regions of the surface of the hemi-spheres. In all the cases it is expressly mentioned that thesoftenings had left the central masses, thalami optici, cau-dated and lenticular ganglia, and internal capsule, entirelyuntouched. My observations may be divided into Fig. 45.—Human brain, left side; destruction of the ascending parietal convolu-tion and a great part of the ascending frontal convolution. The first includes those cases where no permanent hemi-plegia existed during life, and where autopsy discovered noconsecutive degeneration. In all these cases the convolu-tions fed by the Sylvian artery, and especially the ascendingfrontal and parietal convolutions, had remained yellow patch occupied one of the following regions,namely, some part of the sphenoidal lobes, the quadrilaterallobule, the cuneus, one or both of the occipital lobes, and aregion ranging over the anterior two-thirds of the frontallobes. The most of these observations are accompanied by designs made from nature ;it can be understood that the place and extent of the lesion are thus more exactlylocated, and consequently the ordinary insufficiency of descrip
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