. Anthropoid apes. Apes. ANATOMICAL STRUCTURE OF ANTHROPOID APES. 93 easily discovered. This point may also be perceived in the ears of anthropoids, and especially in those of the orang-utan. Meyer has at- tempted to show that this Dar- winian pointed tip is only due to the abortive development of part of the helix, and in this case we should not regard the occurrence as an ape-li'Se pointing of the helix, but rather as its partial interruption owing to the patho- logical condition of that organ.* In a later edition of his work, Darwin admits,in reply to Meyer, that this explanation may apply
. Anthropoid apes. Apes. ANATOMICAL STRUCTURE OF ANTHROPOID APES. 93 easily discovered. This point may also be perceived in the ears of anthropoids, and especially in those of the orang-utan. Meyer has at- tempted to show that this Dar- winian pointed tip is only due to the abortive development of part of the helix, and in this case we should not regard the occurrence as an ape-li'Se pointing of the helix, but rather as its partial interruption owing to the patho- logical condition of that organ.* In a later edition of his work, Darwin admits,in reply to Meyer, that this explanation may apply , . , ,, Fig. 28.—Hnman car. to many cases in which there are several very small points, or when the whole of the helix is sinuate. In one case, photographed by Darwin, the prominence was so large -that, if we were to assume with Meyer that the ear would have been normal if the cartilage had been uniformly developed- along the whole extent of the helix, the latter must have occupied a third part of the ear. Two cases were mentioned to Darwin in which the upper edge of the ear had no inner fold, and was so pointed that it was very like that of an ordinary mammal. The ear of the foetus of an orang given in Darwin's illustration appears to be pointed, although in the adult animal that organ is very like the human ear. The Darwinian tip may also be seen in the foetus of an orang described and illustrated by Salvatore • Virchow's Archiv. fur Pathologisehe Anatomie, liii. 485 ; 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 Hartmann, Robert, 1832-1893. New York, D. Appleton and Co.
Size: 1174px × 2128px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1880, bookpublisherne, booksubjectapes
