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 1 4 |       have both a front and a back, because they all have sense,
 2 4 |     have sense, and front and back are distinguished by reference
 3 4 |    the opposite parts are the back.~All animals which partake
 4 5 |       too, have the front and back parts identically situated,
 5 5 |  inferior, the front than the back, and the right than the
 6 6 | position towards its front or back; but right and left, superior
 7 11|   because their weight is set back, after the principle of
 8 12|      forelegs forwards, their back legs backwards, and in like
 9 12|   evidently necessary for the back leg from being bent to become
10 13|       example the elbow bends back, but the wrist of the hand
11 15|      mean growing towards the back. If then it must have this
12 16|     the front leading and the back following.) Another reason
13 17|    their body, but rather set back. Their legs are short, and
14 17|      are short, and being set back are serviceable for swimming.