Hi Rollie: Thanks for the information. It belongs with Dan Brevik who will get it right in the new data base. I suspect that the typo that you found may have been introduced not by Wes, but by my sister when she keyed the second addition from his manuscript. Someday we can expect someone to revisit his manuscript to proof it against the new data base. Who knows what that will achieve? Glad the second addition helped you. Regards, Dick