Hi Ron. Thanks for your comments--I was getting very lonely. I'm a bit short of time at present, so will only note now that your remarks seem quite un-Griffinian (even if they're not un-Tractarian!). I'm curious: How much of the Griffin book have you gotten through so far? And, in your opinion, how did he get so off base with respect to what W had in mind as elementary props and (atomic) objects? Walto