green shales and sandstones. Williams says they are essentially sandstone but nothing of the Cataract fauna was seen. This group may have a thickness of 10 feet. Certainly these beds are not red. Then come in red sandy shales and sandstone estimated at 25 feet. It is in the upper 10 feet that the White- mine quarries are situated. Then appear locally two layers of Q. Archimedes that together have a thickness of 30 inches. They are as well developed here as at Grimsthy. Along the Treaty line one sees these beds to their advantage and it is true that one sees the same runout in a distance of 500 feet. Over these humors come in more red sandy shales and sandstones the thickness of which I do not know but seemingly it cannot be more than 10 feet. At the top is the Big Band about