198 August 29-1918. North Arm. "The lower part of the scarp on the east side along the north shore of the arm is primarily sandstone and shale of the Variegated Series. This forms thick limestone cliffs contrasting sharply with the barren slopes of the father. We climbed up the canyon from the cave about 1 1/2 miles from the head of the arm, and here the sediments forming the floor of the lacustrine extends to a height of 600 feet, and in a distance of 1/2 mile or so to the west where, the contact rises higher reaching over 1000 feet. Here I think the sediments were floating upon the father but the contact gradually comes down to the sea level at Padd Point. From here to Stone Bank the whole scarp is of father. To the east of the mouth of this branch the sediment can't be seen again, flanking over and distinctly lying upon the father through further back from where the barren hill tops are made of father. Between however the evidence that the father mass is in the form for particular lacustrine, having a floor of sediments, crustal rock and having once had a covering of the same. Much of the father is coarsely crystalline, the stromic crystals being larger than usual, so that the magma must have cooled slowly and at some considerable depth, the warming being probably been some thousands of feet thick."