Berkeley, Sunday Feb. 27. At 9 A.M. Oretu Castle called at the hotel with he and Mr. Fry, and we are off to see the structure between here and Mt. Diablo. He has been working about this region for 15 years and has it fairly in hand. The faults mapped by Lawson through his students is in parts quite wrong. There is a major thrust of the Mt. Diablo over Franciscan rocks with outlying parts of Chier and Cengric, from the N.E. to the N.W. It has an intricate or simple structure and is in part still in motion. The movement started later the Pleiocene. It includes "closed rally structures", i.e. as strain attempt on and areas thinned and broadend, the whole rally was closed the eastern masses close up to the western end at the same swinging around to the north. That the fold is still folding is seen in that the alluvium onto the under- lying strata are thrown into slight and decided folds. All around the whole area to the N.E.