August 29 continued If traps also occur and some are amygdaloidal, they may rein-quartz pebbles, and the feldspar pieces give the matrix an alkaline nature, but there is not enough feldspar to call it an alkali. The strata engl at the sea shore has blocks up to 8 feet across, but the vast majority of pieces are under six inches, and all are more or less out-rounded to rounded. The other rocks inland are often of smaller and more angular pieces. Even the quartz grits have more or less of this piece. The quartzites and conglomerates are mixed together. The Bric engl are regular strata engl, giving the majority of the loose pieces by the sea grinding against each other in what was formerly Lower Cambrian. Whether age of the former is in com- monly determined since the reef fossils collected are of Tedd C. The strata came off from a granite country bringing in much sand and rein-quartz pebbles, some feldspar and rarely a handful of grains. The shore rocks were cut by dikes or bad flows of trap. It would seem that the main mass of loose pieces are of the upper C or the Orgeonian, but if so it is curious that none have fossils. Probably most are of intraformational origin. The outer Bric engl goes in a broken anticline but near- thelands to the thickest area. The inner engl. goes are many ways from a few feet thick to may feet thick. Most have associated quartz grits layers varying in thickness about either the engl. All are interbedded with soft slate that can be cut not easily leaving the hard ones sticking up as difficult parts and producing the extraordinarily