So that's my Open University S366 Evolution module home kit exercise done.  32 Brachiopods measured, data inputted, graphs drawn, stats done, conclusions drawn, results checked (fine - yay!).  On to Section F 'A History of Life on Earth'.  Oh, and I just sent Matt the link to this blog and he says apparently I live in Nebraska.  That explains the hits I've been getting from America then :)  Off to fiddle with my settings.