. The doctrine of descent and Darwinism. Evolution. COMPARATIVE ANATOMY AND EVOLUTION. 9 is a mere description of nature. But it yields a far more accurate knowledge. In many cases it discloses, for the first time, the significance of organs, and gives to com- parative anatomy the confirmation, and frequently the pos- sibility of interpretation. The ^ ^ wing of a bird, in its individ- ual parts, may be traced back without difficulty to the an- terior extremities of a rep- tile or a mammal. But the leg of a bird, as a complete organ does not harmonize with the leg of other verte- brata until th
. The doctrine of descent and Darwinism. Evolution. COMPARATIVE ANATOMY AND EVOLUTION. 9 is a mere description of nature. But it yields a far more accurate knowledge. In many cases it discloses, for the first time, the significance of organs, and gives to com- parative anatomy the confirmation, and frequently the pos- sibility of interpretation. The ^ ^ wing of a bird, in its individ- ual parts, may be traced back without difficulty to the an- terior extremities of a rep- tile or a mammal. But the leg of a bird, as a complete organ does not harmonize with the leg of other verte- brata until the development of the bird in the reveals that the disposition of the segments and of the articula- tions is precisely the same in both cases, and that the apparent anomaly is pro- duced merely by the subse- quent anchylosis of bones, which generally remain sep- arate. The complete leg of the bird (A) shows us at a, the femur, or thigh bone, and at 6, the tibia, or lower leg bone; but instead of the bones of the tarsus and metatarsus, the latter of which affords attachment to the toes, we find only the long bone c, and at its lower extremity a small bone supporting 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 Schmidt, Dr. (Eduard Oskar), 1823-1886. New York, Appleton
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Keywords: ., bookauthorschmidtdreduardoskar1, bookcentury1900, bookdecade1900
