Craigleith July 26-1912 Friday. Started in at the little brook beside the private roadside about 1/4 miles north of Craigleith station. The transition from the darker Helly and harder Utica shales to the crumbling blue shales is as described yesterday. In the dark shales Triarthrus or mirus is always present. In places one finds Leptothyris and the graphites (always the newest trace of a single thin and grey chart species) also occur at the tip. In the blue shales I did not see any fossils today but those given yesterday to fall above the black shale with a single small Triarthrus head and the other prints show that they are present and that there is a complete transition here from the dark Utica to the blue Utica or Eden. They collected fossils in the Collingwood Hael shales and interbedded limestone. All of my material comes from the eighth foot of lowest beds above the Merion, written