Elements of phrenology / [George Combe].

  • George Combe
Date:
1850
Catalogue details

Licence: Public Domain Mark

Credit: Elements of phrenology / [George Combe]. Source: Wellcome Collection.

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    to the exclusion of its real discoverer ; but the oreat historical record remains, and an impartial posterity will do justice to Gall. It has since been adopted, more or less fully, by the most distinguished writers on anatomy in France and Germany, and, by some of them, corrected and extended. Two valuable representations of the structure have recently been published; one in Germany, by Dr Frederick Arnold, named “ Icones Cerebri et Medullee Spinalis ;” and the other in Paris, by Dr Foville, entitled ‘Traité complet de l Anatomie, de la Physiologie et de la Pathologie du Systéme Ner- veux Cerebro-spinal. Par M. Foville, 1re Partie. Paris: 1844,” Foville represents the ascending fibres of the anterior column of the crus cerebri (motiferous column) as pro- ceeding to the whole of the convex and upper surface of the brain, even to its posterior extremity. (See his Plate 18, N N,xm.) He describes the connection of the sen- siferous column as follows :—The ascending fibres of this column (G L in his plate) are seen passing onwards to the substantia perforata anterior, and becoming con- nected with the olfactory and optic nerves attached to this part of the encephalon. These sensiferous fibres also form the medullary covering of the floor of the lateral ventricles. The connection of the sensiferous fibres with the convolutions of the hemispheres, ac- cording to Foville, takes place in the following manner :— The grey layer placed upon the surface of the con- volutions, and forming their periphery, consists of alternate layers of grey and white medullary matter. Proceeding from the surface inwards, these layers are arranged (parallel to the external surface) as follows :-— Ist, medullary or white; 2d, grey; 3d, white; 4th, grey ; oth, white ; 6th, grey. This last layer of grey is placed on a layer of white. These white layers, entermg into what is called the grey matter on the sur- face of the brain, are continuous with the lining medul- lary membrane of the floor of the lateral ventricles ; in
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