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1 7 | movement of snakes, and among water animals of eels, and conger-eels
2 7 |       snakes do both land and water (for snakes swim precisely
3 15|   that make their progress in water by dint of organs of movement,
4 15| obliquely; so are the fins in water animals, and the feather-like
5 15|    way they divide the air or water most quickly and with most
6 15|  yielding medium, fish in the water, birds in the air.~Of oviparous
7 17|   they have their home in the water they are webbed; by this
8 17|     long for pushing away the water when they are swimming.~
9 18|       wet medium, and take in water, not air. Fins are useful