Book,  Paragraph

 1   I,  1 |         therefore, my plan has united them together, arranging
 2   I,  1 |      by parents had themselves united and produced others, then
 3   I,  18|       that the parts should be united together when they come
 4   I,  18|       the principles from both united parents, as the first mixture
 5   I,  21|  therefore such animals remain united a long time, and when they
 6   I,  23|     when they copulate and are united, that one animal is made
 7   I,  23|       not emit semen to remain united a long time until the male
 8  II,  7 |        connects and is closely united; for the vessels which pass
 9  II,  8 |  sterile. If one of them alone united with the ass, it might be
10  II,  8 |    even in the other case when united with their own species they
11 III,  2 |       and of similar seeds are united, there is the seed attached
12 III,  10| copulation, the parents remain united for a long time but produce