I haven't been getting any math-fun messages for a few days, and I'm sending this message to see if I get it. Rich, if the list has been getting bounces from me, please try to contact me to let me know about it. Try acw@alum.mit.edu, and if this fails try Wechsler@world.std.com. If all else fails you can phone me at home, 617-484-3647, so I'll know things are awry and I'll try to debug it from my end. Thanks. -A