Animal locomotion or walking, swimming, and flying : with a dissertation on aëronautics (1873)
Pettigrew, James Bell, 1834-1908 · London : Henry S. King & Co. · leaf 97
, and allowsthe tail to be lashed freely about in a vertical direction. Compare withtig. 29, p. 65.—(After Dallas.) act upon the water laterally as in the fish. The tail of thebird, which is also compressed from above downwards, canbe twisted obliquely, and when in this position may be madeto… … FlG 3g —The Seal (Phoca ftetMa, Mull.), adapted principally for water. Theextremities are larger than in the porpoise ami manatee. Compare withligs. S3 and 34, p. TS.—Ori\ form, however, and mode of progression (if the fact of itsoccasionally swimming on its back be taken into account),…
Animal locomotion · Physiology · Aeronautics
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