Book,  Paragraph

 1   I,  21|          in process of producing wind-eggs and is then trodden by the
 2   I,  21|         fertile instead of being wind-eggs. And if while it is still
 3   I,  21| incomplete; I mean the so-called wind-eggs.~
 4  II,  5 |       case of the birds that lay wind-eggs, showing that the female
 5  II,  5 |    exactly what we find, for the wind-eggs become fertile if the male
 6 III,  1 |  spontaneously, which are called wind-eggs and "zephyria" by some;
 7 III,  1 |        now stated in which birds wind-eggs are found, and also what
 8 III,  1 |        and for what reasons. And wind-eggs, as said before, come into
 9 III,  1 |       has been previously given. Wind-eggs are not formed in the flying
10 III,  1 |         the discharge of it. The wind-eggs are produced in greater
11 III,  1 |        some are wont to speak of wind-eggs as not coming into being
12 III,  1 |     takes place quickly in them, wind-eggs forming in the unimpregnated
13 III,  1 |    compared with white. Even the wind-eggs of birds have this distinction
14 III,  1 |        the male in addition; for wind-eggs become fertile if impregnated
15 III,  7 |         both cases.~In birds the wind-eggs become fertile, and those
16 III,  7 |        male contributes to this.~Wind-eggs, then, participate in generation