Lectures on nervous diseases from the standpoint of cerebral and spinal localization, and the later methods employed in the diagnosis and treatment of these affections . hat upon this field, bidsfair to become a very important line of investigation respecting the relations of certainparts of the brain to definitely recognized bundles of fibres within the crus, pons, medulla,and spinal cord. It is as yet in its infancy. 12 LECTURES ON NERVOUS DISEASES. character of cells tbtit compose tlieni. It has been proven that the formand arrangement of the brain cells atford some clue to the special func
Lectures on nervous diseases from the standpoint of cerebral and spinal localization, and the later methods employed in the diagnosis and treatment of these affections . hat upon this field, bidsfair to become a very important line of investigation respecting the relations of certainparts of the brain to definitely recognized bundles of fibres within the crus, pons, medulla,and spinal cord. It is as yet in its infancy. 12 LECTURES ON NERVOUS DISEASES. character of cells tbtit compose tlieni. It has been proven that the formand arrangement of the brain cells atford some clue to the special func-tions over which each preside (Luvs, Arndt, Betz, Stephany. Spitzka,and others). Comparative anatomy has aided in this line of research. Now, when we find that all of these methods lead us to an identicalconclusion concerning any point in cerebral ph3siolog3\ that conclusionbecomes a fact beyond the possibility of dispute. Unfortunately forscience, much still remains to be determined regarding this mysteriousmechanism; but, on the other hand, much has been positively the day may never come when the human mind can fathom allof its mysteries. ^^^^^Z. Fig. 4.—A Diagrammatic Figure, Showing the Cekebrai. Convolutions. (Modifiedfrom Dalton.) S, Fissure of Sylvius, with its two branches, a, and 6, b, b. R, Fissureof Rolando. P, Parietooccipital fissure. 1, 1, 1,rhe first, or superior frontal , 2, 2, 2, The second, or middle frontal convolution. 3, .3, H, The third frontal convolution,curving around the ascending limb of the fissure of Sylvius (centre of speech movements).4,4, 4, Ascending frontal (anterior central) convolution. .5, .5, .5, .Ascending parietal (posteriorcentral) convolution. 6, 6, 6, Supra-Sylvian convolution, which is continuous with 7, 7, 7,the first or superior convolution. 8, S, S, The angular convolution (or gyrus), whichbecomes continuous with ft, 9, 9, the middle temporal convolution, lit. The third, or inferiortemporal
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