Lietanum, Ohio September 22-1913 Again had the use of Hubij's automobile for the day. Set to Lietanum at 9.30 A.M. after a 26 mile drive. Came here to see the contact between the Saint-Autumn and Grunheim formation. At the north end of the village of Lietanum is Reservoir Creek and it is along this stream that the following observations were made. Did not succeed to positively locate the contact zone as no limestone seen was of a sandy nature as at West Chestnut. This is evidence rather for continuity of deposition than change. In going up the Reservoir creek I saw about 5 feet of thin li. grit shale below the Petrosquaria produsca beds. Then these li. beds of 2 feet thick in which I saw our P. lynx. Then the Platystrophia lynx beds of same shale than li, with a thickness of 5 feet. This zone is wonderfully rich in this deed, 99% of single valves and many