I don't know if this will help, but here is a detailed description of the contents of the book. No direct link, you have to do it in stages.
1. Go to Irish Script on Screen: http://www.isos.dias.ie/
4. Royal Irish Academy
5. On left, scroll down to: MS 23 E 29
It seems that this was a bit of a scrap book. Written by different scribes at different stages, with a mixed bag of medical, genealogical, history and pseudo-history, medical advice, poetry, myths and legends and a good bit of Gospel material thrown in for good measure. Conn features in several places.
Several other web mentions including here: http://legends-storiesofeire.blogspot.c ... kin-6.html
But beware the rickwalton page. It sent my antivirus into a tizzie after attempting to reroute the url.