had sent Quaternary fossils and collected Pupilla muscorum , which were abundant in one stratum, Vallonia gracillicosta , Succinea grosvenori and 2 specimens of Lymnaea sp. The latter had not been seen by me before. We did not find Planorbis parvus , which Cannon had found there. In a lateral gulch, in West bluffs of the Platte, NE of Cheltenham schoolhouse , we found one larger specimen of Succinea grosvenori in deposits of aeolian origin probably, as the opposite bluff of the gulch is undoubtedly aeolian. Well up the hill N of the latter point a street cut exposed acqueous deposits dipping SE perhaps 6 or 8 degrees or more, and quite regular in stratification. Does this indicate folding in recent times.