<HTML>Thankyou for this, Mikey, I suspected something like this to be the case. I would like to follow up on the re-evaluation by Wendorf and would appreciate any reference anyone could provide. In particular, Hoffman indicates that grinding stones and sickle stones - whatever thier use - disappeard from the archaeological record for several thousand years after 13,000 B.C. and I would like to learn what is now known about this subject. Do you know of any other shortcomings in Hoffman's book?</HTML>
