Book,  Paragraph

 1   I,  1 |      latter sometimes to the whole class, as the cephalopoda and
 2   I,  1 |          and crustacea, but in the class of insects only to the majority.
 3   I,  12|       oviparous, and in the latter class again it differs in those
 4   I,  13|          males and females in this class all have a part whereby
 5   I,  18|      efficient cause. In this last class sometimes the efficient
 6   I,  19|             since this is the only class in which the catamenia are
 7   I,  19|         from the body. And in this class the fact is clearest in
 8   I,  23|       importance compared with the class of lifeless objects, but
 9   I,  23|            the function of neither class as belonging to both. As
10  II,  1 |          is impossible that such a class of things as animals should
11  II,  1 |           is why there is always a class of men and animals and plants.
12  II,  1 |         some kind of life; but the class of animals exists in virtue
13  II,  1 |        have not, and in the former class again those whose lung is
14  II,  1 |         from the first. The second class do not generate perfect
15  II,  1 |   externally viviparous. The third class do not produce a perfect
16  II,  1 |           outside the body, as the class of scaly fishes, the crustacea,
17  II,  1 | cephalopods. The fifth and coldest class does not even lay an egg
18  II,  3 |    analogue in others. To the same class belong also skin, blood-vessels,
19  II,  4 |         bring it to light.~A third class is externally viviparous
20  II,  4 |         first start from the first class; these are the perfect or
21  II,  5 |          rate, but one case in the class of fishes makes us hesitate.
22  II,  5 |         Again, some members of the class of fishes are neither male
23 III,  1 |            one colour. One of this class alone does not produce the
24 III,  1 |    contribute to making the former class of birds naturally inclined
25 III,  1 |          quantity just to mark the class). The same applies to fish
26 III,  3 |                              3~The class of fishes is also oviparous.
27 III,  4 |         before hatching. Hence the class of fish is prolific, for
28 III,  5 |            is plain that the whole class of fishes is oviparous.
29 III,  5 |         belonging to the oviparous class in respect of the organs
30 III,  5 |           uterus. But if the whole class were females and some of
31 III,  5 | unproductive (as with mules in the class of bushy-tailed animals),
32 III,  5 |         did not exist in the whole class, just as male and female
33 III,  5 |            reason. For just as the class of birds in some cases has
34 III,  7 |            the whole cartilaginous class do not produce much semen,
35 III,  7 |       males and females of the one class of fish differ from the
36 III,  7 |           and females of the other class in like manner, for the
37 III,  7 |            been no male sex in the class of birds, the egg would
38 III,  10|         for at that rate the whole class would consist of leaders.
39 III,  11|            kinds of forms. But the class of plants has but few and
40 III,  11|   wonderful difference. The fourth class must not be sought in these
41 III,  11|      budding off alongside, as the class of onions. In the last way
42 III,  11|            included within it.~The class of snails is the only class
43 III,  11|        class of snails is the only class of such creatures that has
44  IV,  3 |        natural necessity. (For the class of animals divided into
45  IV,  3 |        both the individual and the class are operative, but the individual
46  IV,  4 |          for the same reason, this class also being oviparous and
47  IV,  4 |   monstrosities also belong to the class of things unlike the parent.
48  IV,  4 |         monstrosity belongs to the class of things contrary to Nature,
49  IV,  4 |           the small members of the class, as the mouse family. The
50   V,  3 |            birds and scales in the class of fish.~For what purpose
51   V,  3 |           ones, as is shown by the class of swine compared to that
52   V,  3 |            the hairs be. Hence the class of sheep have such hairs (
53   V,  3 |            as is the case with the class of hares compared with that