There are two hypotheses concerning what happened to this page (and of course none of them can be substantiated, because not even the Scholar was working from the original MS):

1. The page was one of those lost, along with so many others, over the years, through the exigencies of archival transmission;
2. The page did come loose, and is one of the others included in the Writing.

If the latter is true, of course, then the question is: which is the so-called Sticking Page?