New thread. Anyway, putting lisp/SLIME aside, I experimented with emacs
lisp -- and got the same results, i.e., no real LOB functionality, despite
proper loading. I must be doing something wrong? I'll describe my process
again:

Load a.org and b.org into `org-babel-library-of-babel` with
`org-babel-lob-ingest`. Good. Check -- and yes, both functions are
in `org-babel-library-of-babel` and seem to be ready and "live." But when I
try to call them in c.org, org-mode has no knowledge of them. Then I try
#+call and #+lob on a b.org function. Still no knowledge of it. At this
point I'm not sure LOB works -- or I have a mistaken idea of what it is and
what it does.

LB