Thanks to the efforts of Carl Schwarz, and Neil Arnason, a new chapter for the MARK book has just been released, covering Jolly-Seber models, in their various permutations, as implemented in MARK. This chapter should be considered as 'very late beta' - there are likely to be some tweaks to it in the near future, but the bulk of the text is pretty solid.
Since I inserted this new chapter between 2 existing chapters, chapter numbering has changed, and as such, so has the table of contents and index for the book as a whole. So, my suggestion is to simply download a 'fresh' copy of the entire book, which you can do here...
http://www.phidot.org/software/mark/docs/book/