. The brain as an organ of mind. Brain; Thought and thinking; Brain. Chap. XXI.] OF THE HUMAN BRAIN. 383 " The external perpendicular fissures (fig. 135, P) can be traced as easily as in the Hottentot Yenus (fig. 134, T"), but are soon interrupted by the external connecting convolu- tions (a, /3). Towards the sides these fissures are cer- tainly more easily followed than in the European—a cir- I. Fig. 138.—Vertex View of the Brain of a Scotchman. (After Turner.) Fr, Frontal lobe; Par, parietal lobe; Oc, occipital lobe; S F, supero-frontal, IF, infero-frental fissure ; R, fissure of R
. The brain as an organ of mind. Brain; Thought and thinking; Brain. Chap. XXI.] OF THE HUMAN BRAIN. 383 " The external perpendicular fissures (fig. 135, P) can be traced as easily as in the Hottentot Yenus (fig. 134, T"), but are soon interrupted by the external connecting convolu- tions (a, /3). Towards the sides these fissures are cer- tainly more easily followed than in the European—a cir- I. Fig. 138.—Vertex View of the Brain of a Scotchman. (After Turner.) Fr, Frontal lobe; Par, parietal lobe; Oc, occipital lobe; S F, supero-frontal, IF, infero-frental fissure ; R, fissure of Rolando ; ZP,intra-parietal, and P 0, parieto- occipital fissure; S, horizontal, and iS', ascending limb of the Sylvian fissure A, supra-marginal lobule. 1, 1, Inferior, 2, 2, middle, and 3, 3, 3, superior frontal convolutions; 4, 4, ascending frontal, and 5, 5, ascending parietal convolution; 5', outer, and 5", inner part of postero-parietal lobule; 6. 6, angular convolution; 10, tuperior occipital convolution, a. a, first, and ^, second anntctent convolution. cumstance which imparts a lower character to this part of the Bosjes brain; at the same time they are far more interrupted than in the Chimpanzee or Orang-outan. These short external perpendicular fissures join as usual the summits of the internal perpendicular fissures, and,. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Bastian, H. Charlton. N. Y. , Appleton
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