. Animal locomotion, or Walking, swimming, and flying, with a dissertation on aëronautics. Animal locomotion; Aeronautics. PROGRESSION ON AND IN THE WATER. 65 happens in the feathering of an oar. A very similar plan is adopted by the Pteropoda, found in countless multitudes in the northern seas, which, according to Eschricht, use the wing-like structures situated near the head after the manner of a double paddle, resembling in its general features that at present in use among the Greenlanders. The characteristic movement, however, and that adopted in by far the greater number of instances, is
. Animal locomotion, or Walking, swimming, and flying, with a dissertation on aëronautics. Animal locomotion; Aeronautics. PROGRESSION ON AND IN THE WATER. 65 happens in the feathering of an oar. A very similar plan is adopted by the Pteropoda, found in countless multitudes in the northern seas, which, according to Eschricht, use the wing-like structures situated near the head after the manner of a double paddle, resembling in its general features that at present in use among the Greenlanders. The characteristic movement, however, and that adopted in by far the greater number of instances, is that commonly seen in the fish (figs. 29 and 30).. G. 29.—Skeleton of ths Perch {PercafluviatUis). Shows the jointed nature of the vertebral column, and the facilities afforded for lateral motion, particu- larly in the tail id), dorsal {e,f), ventral (b, c), and j^ectoral («), fins, which are principally engaged in swimming. The extent of the travelling sur- faces required for water greatly exceed those required for land. Compare the tail and fins of the present figure with the feet of the ox, fig. 18, p. 37.— (After Dallas.). 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 Pettigrew, James Bell, 1834-1908. New York, D. Appleton & company
Size: 2445px × 1022px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1870, booksubjectaeronau, bookyear1874
