. Darwin, and after Darwin. An exposition of the Darwinian theory and a discussion of post-Darwinian questions. Evolution; Heredity. 194 Da7"wtn, and after Darwin. A B. Fig. 86.—Comparative series of Brains. (After Le Conte.) The series reads from above downwards, and represents diagraminatically the brain of a Fish, a Reptile, a Bird, a Mammal, and a Man. In each case the letter A marks a side view, and the letter B a top view. The small italics throughout signify the following homo- logous parts: m, medulla; ci, cerebellum ; op, optic lobes; cr, cerebrum and thalamus; ol, olfactory lobe


. Darwin, and after Darwin. An exposition of the Darwinian theory and a discussion of post-Darwinian questions. Evolution; Heredity. 194 Da7"wtn, and after Darwin. A B. Fig. 86.—Comparative series of Brains. (After Le Conte.) The series reads from above downwards, and represents diagraminatically the brain of a Fish, a Reptile, a Bird, a Mammal, and a Man. In each case the letter A marks a side view, and the letter B a top view. The small italics throughout signify the following homo- logous parts: m, medulla; ci, cerebellum ; op, optic lobes; cr, cerebrum and thalamus; ol, olfactory lobes. The series shows a progressive consolidation and enlargement of the brain in TCneral, and of the cerebrum and cerebellum in particular, which likewise exhibit continually advancing structure in respect of convolution. In the case of Man, these two parts of the brain have grown to so great a size that they conceal all the other parts from the superficial points of view represented in the 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 Romanes, George John, 1848-1894. Chicago The Open Court Pub. Co


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