Dark blue limy shales, highly schistose. About 15 feet. Then the dark blue slates badly twisted into blocks of dolomite - a layer some of it twisted about. The thickness cannot be determined, but it is large; maybe as Keith has it 200 feet. Then collected in the Milton (Denton says 60 ft below the previous measured section, but one of July 9-1922 shows about 40 to 50 ft). First in Haell Hole where I got a very few Lingulids. Less than 5' farther down there is gone a few feet thick with thin copper-lime-like layers that have a series of my small trilobites. All look to me like Wfu Cambrian. Have one Agnostus jurelika. This is gone (1) in the Milton. Denton collected all morning in the tar fossil horizon. June (2) at Highgate Falls, Pt. The large boulder in thin-bedded dark blue liq, after a Saturday, looks in section like this:- Evenly bedded about 10' long by 5' thick Dent. Cryst. Dent. Cryst.