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Google Books: 40/1 (Libri I-XIII) and 40/2 (Libri XIV-XXII)
On Google Books: Part 1 (I-XIII), part 2 (XIV-XXII)
8,
8 (wants 7),
8,
6,
8,
4,
8,
6,
6,
8 (wants 6),
8,
10 (wants 2),
8,
2.
[The gatherings are numbered, as above, in the lower margin of
the last page (or, as on