Castleton, D. Sep. 28-1922. Thursday. Fine long grand day. Started at 8 A.M. in the East Castleton slate quarry. Here the purple slate about 20-feet thick is underlain by 35 feet of thin bedded limestone. They have Erdisocus spe- cious, Phlygus senescens, and Ozolithellius cricatus, but at any specimens are found. The first is the common fossil. At noon went to Cedar Point to see the slate quarry in operation. There seems a closed and contoured syncline with fine slate above the red and filled outside by the limestone. Here in the limestone one also saw Er- diocus. Then drove back to collect in the Lower Cambrian limestones at Glen Lake. Stone from Erdisocus, several small Orlidae and what appears to be Andilla togensis. Then drove north around Half Moon, Black, Bridge, Rock and Austin Point and then south for Huttardston, Wallace Ledge, and Jms Quarry to the Hotel. Jms quarry no lignite shows the structure as 14 months ago.