Book,  Paragraph

 1   I,  7 |       large; such men are less fertile than when it is smaller
 2   I,  18|     not only from infertile to fertile, but also from bearing female
 3   I,  18|       none at all or it is not fertile, because a useless and morbid
 4   I,  18|      as men, appear to be less fertile than others from the fact
 5   I,  19|  behind after the discharge in fertile women, and no greater quantity
 6   I,  21|       yellow, then they become fertile instead of being wind-eggs.
 7  II,  5 |        live in the same way as fertile eggs (for then they would
 8  II,  5 |       for the wind-eggs become fertile if the male tread the female
 9  II,  7 |        on the surface, but the fertile sinks to the bottom, for
10  II,  8 |       of different species are fertile with one another, as was
11  II,  8 |     and thus these animals are fertile when crossed with one another,
12  II,  8 |  produced by them is no longer fertile but unable to produce perfect
13  II,  8 |      conceive, if she is to be fertile, but must also nourish the
14 III,  1 |       tread often and are very fertile, as are sometimes small
15 III,  1 |       And other birds are more fertile than game-fowl, for their
16 III,  1 |    inclined to tread and to be fertile, as we find also in the
17 III,  1 |        The kestrel is the most fertile; for this is nearly the
18 III,  1 |        are of a lascivious and fertile nature, so that the impulse
19 III,  1 |     that the fish kind is very fertile; now it is impossible for
20 III,  1 | addition; for wind-eggs become fertile if impregnated by the male
21 III,  7 |     birds the wind-eggs become fertile, and those previously impregnated
22  IV,  1 |     the more thickened is more fertile. Yet to put it in this way