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 1 [Title] |                              On the Generation of Animals~
 2   I,  1 |             which contribute to the generation of animals and of which
 3   I,  1 |             and to inquire into the generation of each animal is in a way
 4   I,  1 |        beginning of the question of generation next to them.~Now some animals
 5   I,  2 |                            2~Of the generation of animals we must speak
 6   I,  2 |          and foremost as origins of generation, the former as containing
 7   I,  2 |   containing the efficient cause of generation, the latter the material
 8   I,  2 |             are first principles of generation. For by a male animal we
 9   I,  2 |     entities as fathers, as causing generation.~Male and female differ
10   I,  4 |             it is not necessary for generation is plain; else had it been
11   I,  13|           For it is for the sake of generation, not for the evacuation
12   I,  13|           the parts contributing to generation, and the causes thereof.~
13   I,  14|           the parts contributing to generation. There are four classes
14   I,  15|             not an organ useful for generation, for it is outside the passage
15   I,  15|             female, but whether for generation or some other cause has
16   I,  17|        contribute by means of it to generation, and generally what is the
17   I,  18|         what would be the manner of generation? For the heteroeneous parts
18   I,  18|          assume, in the case of the generation of animals, what he assumed
19   I,  18|          then also the cause of the generation is not its coming from all
20   I,  18|          the female is cause of the generation in some other way. Into
21   I,  18|            has in it a principle of generation, in the case of all animals
22   I,  19|  contributes nothing else either to generation but only provides a receptacle,
23   I,  19|          semen that is the cause of generation, or whether it has in it
24   I,  19|             contribute semen to the generation of the offspring. For if
25   I,  19|        contributes the material for generation, and that this is in the
26   I,  20|          reasonable to suppose that generation comes from this. For the
27   I,  20|            Thus the catamenia cause generation mixture with the semen,
28   I,  20|           secreted, only enough for generation but not enough to be discharged
29   I,  20|             the male contributes to generation is the form and the efficient
30   I,  20|             not contribute semen to generation, but does contribute something,
31   I,  21|             the male contributes to generation and how it is that the semen
32   I,  21|             is to be drawn from the generation of oviparous fishes. When
33   I,  22|             the male contributes to generation. The male does not emit
34   I,  22|           these males contribute to generation. But when the male does
35   I,  23|             must speak later of the generation of these animals.~ ~
36  II,  1 |        female are the principles of generation has been previously stated,
37  II,  1 |              are the reasons of the generation of animals. For since it
38  II,  1 |         individuals for the sake of generation. Again, as the first efficient
39  II,  1 |          the female for the work of generation, because this is common
40  II,  1 |           into being by spontaneous generation are yet male and female;
41  II,  1 |           how rightly Nature orders generation in regular gradation. The
42  II,  1 |           is the efficient cause of generation in each case, as the first
43  II,  3 |           species is the end of the generation in each individual. Hence
44  II,  4 |             male nor female. Of the generation of these we shall speak
45  II,  4 |          this place for the sake of generation, that another creature may
46  II,  4 |             as time goes on and one generation springs from another, the
47  II,  5 |         always perfects the work of generation, for he imparts the sensitive
48  II,  6 |        principle of movement and of generation, existing for the sake of
49  II,  6 |          what is the cause of their generation.~
50 III,  1 |          and within themselves. The generation of the oviparous sanguinea
51 III,  1 |        while it is the material for generation that exists in the female
52 III,  1 |           alike it is imperfect for generation without the seminal fluid
53 III,  1 |              eggs are perfected for generation without the males. As for
54 III,  1 |     receives the first principle of generation from the white (for the
55 III,  2 |            both at the beginning of generation and as the animals are forming,
56 III,  5 |   differences in the copulation and generation of various animals are of
57 III,  6 |           story is told also of the generation of birds. For there are
58 III,  7 |                      7~Touching the generation of fish, the question may
59 III,  7 |     Wind-eggs, then, participate in generation so far as is possible for
60 III,  9 |           We have now spoken of the generation of other animals, those
61 III,  10|           much difficulty about the generation of bees. If it is really
62 III,  10|           there is such a method of generation that they produce eggs without
63 III,  10|             of animal so also their generation appears to be peculiar.
64 III,  10|        Hence in a sort of way their generation is analogous. For the leaders
65 III,  10|  assimilated to them their power of generation, the drones in size; if
66 III,  10|      similar to what obtains in the generation of lions, which at first
67 III,  10|           to be the truth about the generation of bees, judging from theory
68 III,  10|   considerable size.~Concerning the generation of animals akin to them,
69 III,  11|             11~Having spoken of the generation of all insects, we must
70 III,  11|              Here also the facts of generation are partly like and partly
71 III,  11|            the different methods of generation in plants; some of these
72 III,  11|             the medium in which the generation takes place and the material
73 III,  11| sufficiently observed whether their generation is the result of the union
74 III,  11|            the conception, and such generation we say is from an egg.~It
75 III,  11|           any such beginning of the generation of all animals, it is reasonable
76 III,  11|              for we do not see such generation occurring with any animal,
77 III,  11|        so-called eggs contribute to generation but are only a condition,
78  IV,  1 |             have thus spoken of the generation of animals both generally
79  IV,  2 |           and these again influence generation.~The male and female, then,
80  IV,  2 |        infertility, and as concerns generation of male or female offspring.~
81  IV,  3 |            has always more force in generation than the more general and
82  IV,  3 |          than is his animalhood. In generation both the individual and
83  IV,  3 |            is not prevailed over in generation must change and become the
84  IV,  4 |         semen must needs be used in generation by the larger animal, and
85  IV,  7 |           touches to the process of generation. Hence it is that the mola
86  IV,  8 |          Nature forms the animal in generation. Now this is the sanguineous
87  IV,  10|    therefore she contributes to all generation and development. For heat
88  IV,  10|             principles which hinder generation and decay from being according
89   V,  8 |          alien to the discussion of generation and development to inquire