at least one page

There are two lines of argument concerning what happened to this page (and of course neither can be substantiated, because not even the Scholar was working from original textual artifacts):

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 would have to be: which is the so-called Sticking Page?