Friday Sept. 13, 1907 Above the group of the Brandywine Lime, as well in 4.2, occurs a gabbroic coarse grained granite like that at 1215-2 similar to 1202. Specimen in 1216. This rock appears to be only a narrow dike. Rhyolite truffs appear on the east end of this bridge in the roadbed. Some dark blue chlorite glassy specks seen on the north at the 40 ft. contour 19 yards east of the bridge, at the 60 feet contour in the bed had in eastern 4 there is seen a dark brownish black very fine grained chlorite 1217, which resembles as a local trap or triff right. This lighter in color and passes into gray chlorite porphyry which turns out in the gate of smooths (Specimen 1218). H.24.7. At the bridge in another direction there are playdite fragments appear on all sides of the bridge, but about 15 feet east of the end and about in the north side and right 10 yards east of the bridge in the south side of Potar's Stream, appears exceedingly coarse grained gabbro the west contact striking W.47°W. E. Specimen from the west side in 1213. The dike is about 2 feet broad on the east it is followed by exceedingly coarse fragments with fragments a foot or more very common and in places there is barely any distinct on the east side of the line of the point in N.E. 4.24.7 appears for instance of bedding striking N.16°E. dipping 60°E., but these may be joint planes. A few feet to the east in 4.24,7 occurs a narrow gabbro dike of augite dolerite trap 1219 striking W.5°N. for small to maps. On the Great Falls side one in the boundary between 4.24 and 4.25 appears a 20 ft. dike (striking N.35°W.) of the very coarse gabbro the same as 1213. But very coarse fragments continue around to the rock further down at the little ditch in 4.24.8 miles for project seem some dark porphyry, the fragmental porphyry looks all of a faint dark red color. A few feet S.W. strikes down the lake gabbro reappears extending as far as the 50 feet contour where it is cut across by the fragmental truff which turns over the hill of the bed in 4.24,8. On the southwest side of the hill about half way up the gabbro reappears not thin but a few feet 1296. Fragmental truffs goes place northeasterly to pure basic amygdalite which occur on the main necks just filling northeastwards into 4.24.5 fragments appear lower in the end of this neck, associated with dark purplish amygdaloid lava 1215. The specimen from east side of this point Rhyolite fragmentals appears at the east and west ends in 4.24.8 and again fills east on the little point E.of S. of the Effort sounding in 4.24/6 as well as on the island W.N.W. of Effort sounding. Playdite fragmentals, truffs etc. glassy the fragmentals predominating on the east side of the point just east of 4.25 and on the boundary 4.25-4.7, a 6 foot dike cuts somewhat like the glassy porphyries. This dike is the very coarse trap in fire or clay similar to 120 and runs N.12°E. A few feet to the east on another dike has distinctly gabbroic appearance a few degrees west of north. Some fragmentals appear on the east side of this dike in western 4.25-7, due west of the 3 foot sounding V.S.W. of 13 ft. there seems pink chlorite glass with flow structure S with white top, passes to the bedding plane striking N.44°E.'s dipping S.E. at an angle of 40°. The arch is 1216. Due west of lake by of the figure 2 in 4.25-7 occurs a norton 6 foot dike of fine trap 1217 bearing N.20°W. and in contact (S glassy) with it as a 15-20 feet gabbro dike 12/8 in place a foot or so of playdite appears as a distinct separate dike, 1217 is 2 feet from the N.E. corner test, 1218 is 2 feet from the southwest contact from this point continued the north corner of glasses v porphyries (plates) with hardly any fragmental bed interlacing on the northeast side the joint in 4.35-3 appears which will of very coarse gabbro striking N.35°W and apparent the same dike as 1213. At the southeast end of the neck in 4.35-1, the glasses are well developed clearage granite (grains) points in 4.35-2 occurs a globe of trap which is from one foot to 7 feet broad generally expanding E at the joint offset E.W. Specimen in 1219, the dike lies in general N.90°W. and appears to be the same as 1217-1210. In several hundred yards west of the first shown in 4.35-2 and the west end of the trap dike 1219 there appears in the middle of a dark blue v dark red chlorite plates sharply delimited masses of which brown flints resembling a junction or magnetic attraction N.60°W. setting 2 to 7 feet long and 1 to 2 feet wide along as N.17°W. along this region all the plates are the fully well stratified striking N.49°W. dipping 24-35°N.E. In table 5 V. east of the joint, getting into 4.35-3. The truffs are partially fragmental, actually stratified and column 2 records a green dike, the one shown a foot thick, and the other 24 miles bigger 5 miles thick. The fragment in the underlying truff is about 1/2 web thick. Strike N.68°W., dip 45°N.E. The stratified bed continues twenty strakes and falls point. In places the fragmental truffs are somewhat for resemble to the black truffs, west of Rush Point in the dark greenish gray matrix; the glazes are purplish, or clay