153 August 15. Pot-au-Criox Dentars note. Dentars notes are as follows:- The two ledges of rock along route Pot-au-Criox core are glaciated striated and polished. The striae run due west. Going along the north side of route Pot-au-Criox core we are away on the strike of the higher Reed mountain = Longueau d'or, 14. On the surface of the gently south-westwardly dipping strata we see numerous fairly preserved fossils weathering out in relief as siliceous pseudomorphs. The surfaces of the rocks over there very rough in having an irregular network like fissures of silica in relief. Pilcrenus and Eucosma are common, and Orachulis affinis. Fossil lit mrs fm here. On the peninsula at the north-west edge of the core where is a high-tide island we find the highest layers exposed on the north side of the core. These are fluviat gray in color and apparently less diomitic than those below. They weather into thin flakes and fracture more or less badly. Here occur Vaginoceras projecta, Recipitaculite, small Pilcrenus, Eucosma and coiled cithalophorites. Cliff Edgus S.30 W. Fossil lit mrs 1 fm here. Proceeding south and north-eastward we slowly descend in the section. At near 100 feet above the base of Division 3 or 4 occur fluviat gray lying beds with many depressed gastropods and fair quantities of spirculin, also small Pilcrenus, Partroglycenus lamarchi, coiled cithalophorites that look much like Eumystotis Kelloggi, and numerous other unidentified species of cephalopods. These layers weather smooth or tip and the fossils are partly