]> And an addendum: If you are resistant to using "intermediate" classes with pieces of the functionality you need, remember that you can always hide these classes using module interfaces, and make the classes virtual so that you don't mistakenly use them in your code. John. ------------------- To unsubscribe, mail caml-list-request@inria.fr Archives: http://caml.inria.fr Bug reports: http://caml.inria.fr/bin/caml-bugs FAQ: http://caml.inria.fr/FAQ/ Beginner's list: http://groups.yahoo.com/group/ocaml_beginners