Book,  Paragraph

 1   I,  3 |  Animals.~The uterus is always double, just as the testes are
 2   I,  3 |    fishes). The uterus is also double in the crustacea and the
 3   I,  3 |      everywhere similar.~It is double also in the larger insects;
 4   I,  11|     their production having no double character. Besides this,
 5   I,  13|   urine, that the passages are double; but because the semen is
 6  II,  5 |   first last, Nature running a double course, so to say, and turning
 7 III,  1 | one-coloured. The cause of the double colour may be seen from
 8 III,  8 |  uterus is divided and appears double, but that of the poulps
 9 III,  9 |      such animals go through a double development and for what
10  IV,  4 |     Therefore it produces many double eggs, for the embryos grow
11  IV,  4 |      with many fruits. In such double eggs, when the yolks are
12  IV,  4 |        certain cases we find a double set of generative organs [
13   V,  1 |       not so is not simple but double. For the word "keen" has
14   V,  1 |        keen" has pretty much a double sense (and this is the case
15   V,  3 |        as being carried with a double motion, the earthy part