Book,  Paragraph

 1   I,  19|    discuss the catamenia which occur in certain of the vivipara.
 2   I,  19|      when the catamenia do not occur at all, or of conception
 3  II,  4 |   blood, the catamenia tend to occur at the above-mentioned period,
 4  II,  4 |        of body; if they do not occur at all or if they are excessive,
 5  II,  4 |     what are called bad dreams occur by night with women as with
 6  II,  7 |       cases are rare, but they occur with dogs and foxes and
 7  II,  7 |    former the catamenia do not occur, in the latter the semen
 8 III,  1 |       zephyria" by some; these occur in birds which are not given
 9 III,  1 | viviparous sanguinea (for they occur in all these latter, more
10  IV,  2 |        fact that the catamenia occur in the course of nature
11  IV,  4 |     necessary that this should occur when the semen is not separated
12  IV,  4 |      even in man monstrosities occur more often in regions where
13  IV,  4 | monstrosities, whenever things occur contrary indeed to the established
14  IV,  4 |     only do the same phenomena occur, but also the numerous embryos
15  IV,  5 |        Superfoetation does not occur at all in some animals but
16  IV,  5 |     The reason why it does not occur in some is that they produce
17  IV,  6 |  whenever the catamenia do not occur); and they are more troubled
18  IV,  7 |        as to why this does not occur in other animals, unless
19  IV,  7 | animals, unless indeed it does occur and has entirely escaped
20  IV,  8 |  children the catamenia do not occur according to Nature, nor
21   V,  1 |      while in other kinds they occur at random, as is especially
22   V,  3 |     head. Some such affections occur in a corresponding manner
23   V,  8 |       parts which are found to occur not for any final end but