Book,  Paragraph

 1   I,  1 | already discussed the other three causes, for the definition
 2  II,  3 |  the rational soul. For all three kinds of soul, not only
 3  II,  6 |  have pipes. Thus there are three things: first, the end,
 4 III,  1 |  frequently produce two, or three at the most generally two,
 5 III,  1 |   next year four, and again three cubs, then the next number
 6 III,  10|    not prevail with all the three kinds if it prevails with
 7 III,  10| arranged by Nature that the three kinds always continue in
 8  IV,  3 |    faces to those of two or three animals, and his arguments
 9  IV,  4 |    rule.~Man belongs to all three classes, for he produces
10  IV,  7 |  but she continued thus for three or four years until dysentery