bold = Main text
   Vol.,  Sect., Part, Chap., Par.                                 grey = Comment text

 1        I, Pref                    | historical basis. It is but natural that those who write on
 2        I, Pref                    | blame myself, for it is but natural that scholars in their joy
 3        I, Pref                    |   of so much that is fresh, natural, simple, beautiful, and
 4        I, Pref                    |  the reflexive pronoun, the natural temperament -or disposition,
 5        I, Translat                |  being the case, it was but natural that the attention of the
 6        I, Intro,    0,   0,   6   |     and nothing seemed more natural therefore than that their
 7        I, Intro,    0,   0,  10   |    some points, this is but natural, considering the character
 8       XV,   5                     |  Nothing therefore was more natural than that the same tendency
 9       XV,   5                     | systems, what could be more natural than that another name of
10       XV,  14,    0,   5          |    forms, whether for their natural or for their own (higher)