•Text division only corresponds to quire division in 2 cases: Diete universales begins with Quire 3, Liber urinarum begins with Quire 9.
•Of these two instances, the break after Quire 2 is significant because the texts of Quires 1 and 2 are the only ones in the manuscript not written by Isaac Israeli. The layout of Liber de pulsu (ff. 7v-15r) is different from the rest of the texts in the collection and the last leaf of Quire 2 is very thick and its verso left blank, like a cover.
•Also, the last leaf of Quire 4 is signed with a "II" as though it was once the second quire in the group. Hence, the first two Quires may have been intended as a separate book.
•However, the styles are so similar that they were likely produced in the same scriptorium, and the quires were all bound together early in the manuscript's life: there is no damage to the first leaf of Quire 4, and there are wormholes in the first and last quires of the book as it is currently bound, but none in the back of Quire 2 or the start of Quire 4.
