Dear Chris, Thanks for your fax. Indeed, THAT h-T relationship is rather obvious, but I am still not sure that one can assume a correlation for clder-more humid periods in the past. after all, it really all depends on air masses movements. Still we may assume a correlation just for the purpose of the excercise, and see wher this leads us. thanx again yehoshua * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * Yehoshua Kolodny, Dept of Geology, The Hebrew University . Jerusalem. ISRAEL 91904 PHONES: off:(972) 2-6584685; dept.:2-6584686; home 2-5636879;FAX:(972-2) 662581 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *