August 7, 1921. Sunday. Started north to the east of Lake Bomo- to see the area more less studied by Brinckman. We again were in the slate belt of the Lower Cambrian. It is the succession we saw but along the south shore of Lake Glenn. Finally near Twin Lake we came upon a good development of the limestone, and in it I saw considerable pre- servatory stuff - trilobites - of the Lower Cambrian. Have a few pieces but initially the debris cannot be determined. Fragments of (Clenelles) . Pitopogin spicula are common. Associated with these limestones are flued slate, some of which are marked and those that might be mistaken for gneptro lites. None are, however. We saw the same kind closely along the south shore of Lake Glenn. Near Twin Lake we saw dick up on the mountain side a quartzite lump, about 35 feet thick folded some thing like this:-