Book, Paragraph

 1   I,  1 |         productions of nature. The mode of necessity, however, and
 2   I,  1 |        necessity, however, and the mode of ratiocination are different
 3   I,  1 |          same process.~The fittest mode, then, of treatment is to
 4   I,  1 |          to describe its design or mode of composition in preference
 5   I,  1 |         however, be asked, of what mode of necessity are we speaking
 6   I,  1 |       There is, however, the third mode, in such things at any rate
 7   I,  1 |          do without it. This third mode is what may be called hypothetical
 8   I,  3 |           a colour, the other by a mode of progression, swimming
 9   I,  4 |       dealt with division, and the mode of conducting it so as best
10  II,  2 |         essential constitution and mode of life of the several animals,
11  II,  13|          there is nothing in their mode of life which imperatively
12 III,  1 | saw-toothed. For seeing that their mode of warfare consists in biting,
13 III,  1 |          the beak is suited to the mode of life. Thus, in woodpeckers
14 III,  1 |           in some other way to the mode of life. For a broad bill
15 III,  2 |        Bonasus that have a similar mode of defence. In no case,
16 III,  4 |          are suited to its special mode of life and motion, so is