Chapters 3-4, ordered and numbered by the author. Inserted sheets (such as 100A) are usually smaller in size than the main text (which is A4).
Chapter 3: 100, 100A, 101-4, 100B, 105-15, 115A (with an additional small sheet without number), 116-21, 121A-C, 122-5, 125A-B, 126-31, 131A, 132, 132A, 132A (second small sheet with this number), 132B, 133, 133A-B, 134-7, 138A-C, 138CA-CC, 138D-E, 138EA, 138F-G, 138-43, 143A-B, 144-5, 145A, 146. Chapter concludes on sheet 147.
Chapter 4: 147 (also numbered 154), 155-62, 162A, 163-4, 164A-C (on two small sheets), 165-8, 168A, 169, five small sheets (incorporating inserts 169A, 169AA, 169BB, 169AAA, 169B, 169C, and 169D), 170-1, [171A], 78 (typescript), 172-3, 170A, 174-80, 180B (including 180C), 181-3.