Monday June 10, 1907. N End of Bass Island, where RR Bridge crosses to Carlow Island. On the south side of this large dark crop out on the same at high tide mark. Silurian shale which are usually labeled and little else shows dark gray in color, weather a light gray and others shows exhibit imperfect cleavage at an angle of 35° direction N. 13° W. strikes S. 80° W. The sedges are intersected by rhyolite dikes & sills, fewer gams found on western tip. W2a E 50 100 150 200 250 300 350 direction of section N. 15° W. or along line of dips 394) a. Fossiliferous gray shale takes in places, top as given above fossils 3:44:7. large lingulae of Lower I. reciditor; also a couple of species of Meduslopsa. The Lingulae found both common in many seams. (b). A retrograde like seam about 2 feet thick of shale like creamy soft gray rock, strongly opalescent with pebbles & clastic tuff or ash, 70 c. Rhyolite dikes approximately 4 feet broad 395) d. Gray Shale. Dip 37-33° direction N. 56° W. Strike S. 86° W. e. Center gap of brick about 10 feet long f. Same as (c). This rock also forms the point marked I in 3:44:7 d E W contact bearing N. 76° E. Contact between C & D is slate to the west, the shale dip as given above for (c). These shales are distinctly folded & slightly baked. In a short west of the contact, the shales are bowed up into a little anticline & very much baked. To the east of the contact, the rhyolite is of a darker gray color & finer grain. At 20 inches from the contact the rhyolite is normal. A photograph was taken 1903, E. Typical at contact showing characteristic cleavage 1904, B. Hand specimen & chip of baked shale just outside limit of contact. Opisthophora 1905. At 1½ inches from the contact occurs a very dark oolitic fine 4¼ inch thick. The specimen shows the merging with rhyolite & the gray rapidly coarsens nears the contact 1906, a. Normal gneiss rhyolite with some spots 3 feet from contact