Plain Quadrille Ruling Patented 1906, John C. Moore Corporation, Rochester, N. Y. Aug. 27 '08. In the railroad cut at the S.W. corner of the bench in 120.8 occurs a crossing of "galbre" and white rhyolite "micro granito" dike. 120.8 The nearby country rock appears to be flow breccia of basic andesite highly injected with the white rhyolite. The rhyolite is a white to pinkish white glass, but near the boundary with the galbre dike it becomes darker in color. The rhyolite is highly mineralized with pale colored gyrite. Specimen rhyolite 120.8 (D) The "galbre" (= coarse diabase) dikes trend S.W. x N.E. and there are suggestions of finer grained texture near contact. The galbre appears to cut across and in- terrupt the rhyolite. About 300 yards to the south there occurs along the railroad (east side) an ex- 1.30 posure of basic andesitic flow breccia. Recently weathered surface is green; older weathered surface resembles "galbre" surface; fresh cuts are gray tinged with green & frequently tinged with purplish-black Specimen 130.2 (D) Over 100 feet of this are exposed. Next to the south, there occurs at the north end of the deep railroad cut some 5-10 feet of dark blue-black tuffaceous shale. 52.30 These bedded shaly tufts or tuffaceous shales overly a series of frag- mental massive tufta outcropping in the 130.2 (D) cut and to the south over a width of a couple of hundred yards. over