. The brain as an organ of mind. I have observed) is very common in European brains. * Viewed laterally the parietal region is salient; the vertex is low and flattened, its highest point being placed far back ; the frontalregion is The tem-poral lobe is narrow,the line from itspoint to the tip ofthe posterior lobebeing very long ; thecurve formed by theunder border of theCerebrum, abovethe Cerebellum, isslighter, and itsdirection more ob-lique upwards andbackwards than inthe European brain,owing apparentlyto a want of down-ward development 3, 3, upperfruntal convolution; 4, 4, asc
. The brain as an organ of mind. I have observed) is very common in European brains. * Viewed laterally the parietal region is salient; the vertex is low and flattened, its highest point being placed far back ; the frontalregion is The tem-poral lobe is narrow,the line from itspoint to the tip ofthe posterior lobebeing very long ; thecurve formed by theunder border of theCerebrum, abovethe Cerebellum, isslighter, and itsdirection more ob-lique upwards andbackwards than inthe European brain,owing apparentlyto a want of down-ward development 3, 3, upperfruntal convolution; 4, 4, ascending frontal, of tllO OCCipital re-and 5,5, ascending parietal convolution ; 5, 5, lobule of . l • l ascending parietal convolution ; G, G, angular convolu- glOU WlllCn IS Very , . thetips of the temporallobes are pointed and much incurved towards the middle line The orbital surfaces are especially contracted, but have a square or human and not a pointed or ape-like shape. Taken as a whole this brain of the Bushwoman, when. Pig. The Brain of a Bushwoman, upper as-pect. (Heath, after Marshall.) F, Frontal loba; O, occipital lobe; P, parietallobe ; d, d, fissure of Rolando; P, parieto-occipitalfissure •,A,A, supra-marginal lobule. 2, 2, Middle, and tion ; 10,10, upper, and 11, 11, lower occipital convolu- gJ^alloWtion. a, a, first, and /3, second connecting convolutions. Chap. XXL] OF THP: HUMAN BRAIN. 381 compared with that of the European, was found to bespecially defective in depth and vertical height. Fissures, Lobes, and Convolutions of the Cere-brum. The fissure of Sylvius in the Bushwomansbrain extends well backwards, but inclines more upwardsthan in the European brain,* and its course is markedsoon after its commencement by a peculiar horizontalstep Its mar/T^ins are not very closely adapted
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Keywords: ., bookcentury1, booksubjectbrain, booksubjectpsychologycomparative
