July 27-1918, Saturday. East Arm Bonne Bay. In the afternoon it is fine, warm and clear. A dark slightly raining morning. We leave camp and spend the morning looking at the northeast shore of East Arm. This enters from the river or southern end of Deer Brook Bay into the entrance of East Bay is made up of Lower Cambrian. The higher strata are in Deer Brook Bay and again about 1/2 miles southeast of camp. The aurising of the section takes place about one-half mile to the northeast of the crater from which the there is thickened broad and plunging anticlinal structure here, from the cross of which is locally known as Mill Brook. Near the former strata are at hand, in the main fault is white fine grained quartzite. Other crucial Lower the exposed strata have the lower of the section. Cambrian is for a while in unlitown, but it may be several hundred feet, and it may be considerably more. The top of the L.C. is also unknown, and it of to both ends of the arm. crosses in. The entire mountain side of the northeastern shore is L.C., the from the very top down (transition from 30 to 75 degrees) the shale dipping down the mountain sides into the crater. The dip and strikes of the formation is not uniform, but being local undulations and in places cur The probable cliffs is to the northeast and finally runs in Deer Brook Bay. some faults of no marked trend. We made or serious attempt to collect L.C. fossils. We have gotten too tired to master the difficulties, said it's The western shore of Deer Brook Bay is of trap, and the Reed mountain appears where the bay flows out into the arm. Where the crater is about 3/2 to 1/2 mile wide with the dip of the Lower Cambrian and the Reed mountain fairly The Reed mountain line is slightly from the center, and if in limits to have been it, the area was then 10000 sq. constant. At this point the Reed mountain, or the typical rock, thin and thick bedded dark and light colored dolomite with interlaced material and exposure for jointed same ferromagnesium close together. Confonates. Also white layers, and in one place the white over turn of into fettle, and embedded in an interlace material conglomerate with angular surface the dip is 35 S. 60 W. The distance from to Reed. From C. is about 1/2 miles (Reed) fences. There are at times entire beds 2 or more feet thick of Chert.