----------------- HES POSTING ----------------- Larry - It is actually in the sixth edition, and the author is Stanley Brue, not Bruce (probably a typo in your message). In the Acknowledgements, it recognizes the role and contribution of Oser, noting that he was not alive to participate in the last three editions, but that the book still "retains the features, style, and, in many places, the actual words of the earlier editions." So, your questions are certainly relevant and of interest, in my view. Mat ------------ FOOTER TO HES POSTING ------------ For information, send the message "info HES" to [log in to unmask]