Book,  Paragraph

 1   I,  15|        the male and the female sex. The relative position of
 2  IV,  11|              11~With regard to sex, some animals are divided
 3  IV,  11|    spot there is no duality of sex; nor is there such, in fact,
 4  IV,  11| absolutely is not a duality of sex. Thus, in quadrupeds the
 5  IV,  11|      devoid of this duality of sex. For instance, the eel is
 6  IV,  11|    When people rest duality of sex in the eel on the assertion
 7  IV,  11|       species for diversity of sex.~There are certain fish
 8   v,  1 |     and sleep, and the duality sex, all these topics have now
 9   v,  1 |   wherever there is duality of sex generation is due to copulation.
10   v,  2 |    which there is a duality of sex, and the modes of covering
11   v,  6 |       its tentacles, the other sex fits into the outspreading
12   v,  6 |       one another, and the one sex swims backwards and the
13  VI,  18|   excited by the desire of one sex for the other and by the
14  VI,  20|       Laconian hound of either sex is fit for breeding purposes
15  VI,  20|          these a dog of either sex sheds when four months old.
16  VI,  27|      27~The elephant of either sex is fitted for breeding before
17 VII,  6 |       children of the opposite sex when otherwise mated. And
18 VIII,  2|  animal will be of neither one sex nor the other. And so by
19  IX,  1 |      purposes, irrespective of sex; the females, however, are