Chapters 10-13 numbered and ordered by the author as follows:
Chapter 10: 211-45, 122 (typescript).
Chapter 11: 246-50, 250A, 251-66, 131 (typescript), [131A-B].
Chapter 12: 267-77, 275-7 (second sheets with these numbers), [there is no 278], 279-310.
Chapter 13: 311-27, 327 (second sheet with this number), 328-30.