coal sequence is absent P, could map Fox Hills undifferentiated. Told him I would write Aquaw backing this. He also requested I tell A, ① what areas should be mapped next. ② need for paleo-stratigrapher Advised P, to work north of his area until Hell Creek came in, and to east to tie-in Blocks "Howes member". Then gave him my localities on fossils in his area from trip with Bozish, 14/1941 notes. Creighton area merits collecting and some sections - if Pettyjohn does it OK, if not I should do it and establish relation of base to Pierre beculites.