Here is a look inside the chimney from the top down.  What you're seeing are clay flue tiles that are for individual flues within the chimney.  However, they are not extended to the top of the chimney, as they should be.  Our job here is to extend those clay tiles to the top of the chimney & finish off with a new cement crown with a rain cap.  This was a day long project.  As always, there will be more photos to follow.  To see a similar project http://www.dmstorrschimney.com/our-soot-stories/south-weymouth-before-