My apologies to all who received the e-newsletter dated September 12. I overlooked a major typo, and when I made the correction, I intended to send out a corrected version, Somehow, the original version with the typo was resent instead.
I have just sent out the corrected copy, free of typos (I hope!).
Please delete the first two copies you received, and keep the version dated September 14. If you did not receive the e-newsletter, please let me know and I will send you one.