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 1 1 |       all have an even number of feet, if they have feet at all;
 2 1 |     number of feet, if they have feet at all; why in fine the
 3 3 |      against what is beneath its feet; for at the joints the parts
 4 4 |          organized parts (I mean feet for example, or wings or
 5 4 |   movement is the way we put our feet forward; all men lead off
 6 5 |     point on the ground, for the feet appear to have got their
 7 5 |        from the ground under our feet.~Some animals, too, have
 8 9 |   animals have an even number of feet, and the reasons for the
 9 10|         fly stretching out their feet as a substitute for a tail,
10 12|          Sanguineous animal with feet could progress, and that
11 12|        are enabled to lift their feet high; if they bent them
12 12|    forwards the lifting of these feet would be similar to that
13 12|          this mode of moving the feet. Moreover, it is necessary
14 17|      because it has many leading feet. The explanation of this
15 17| Web-footed birds swim with their feet; because they breath the
16 17|        by this arrangement their feet serve them instead of fins.
17 17|        nature has added to their feet by subtracting from the
18 17|          legs and breadth to the feet. Broad feet are more useful
19 17|       breadth to the feet. Broad feet are more useful than long
20 18|          winged creatures having feet, but fish none. The former
21 18|         they must therefore have feet. Fish on the contrary live
22 18|         useful for swimming, but feet not. And if they had both