. Mining and Scientific Press . ll be built usingthe old mill-building. Meanwhile no damage accrues tothe mine by waiting until the bankers discover thai- ssential to our financial stability. The Octave is an objecl Lesson, showing that a mmay be abandoned before it is exhausted. When Isaw it the mine was a discouraging mess, both under-ground and on surface. The conditions were such that tothe east the prospect was hopeless because the vein is cutby a profound fault at the base of the mountain. Some- nt being 50 ft. to tin right. More l1 work i this poinl parallel veins aboul 50 ft. apart, an
. Mining and Scientific Press . ll be built usingthe old mill-building. Meanwhile no damage accrues tothe mine by waiting until the bankers discover thai- ssential to our financial stability. The Octave is an objecl Lesson, showing that a mmay be abandoned before it is exhausted. When Isaw it the mine was a discouraging mess, both under-ground and on surface. The conditions were such that tothe east the prospect was hopeless because the vein is cutby a profound fault at the base of the mountain. Some- nt being 50 ft. to tin right. More l1 work i this poinl parallel veins aboul 50 ft. apart, and the Joker fault ends—like a tear pari way through apaper at about this Level A I In the Joker shaft, the vein shows a sudden wave just above thelooo-ft. li-vci, bul no faulting occurs there, yel In theupper Levels and irface the fault is unquestion- able. ? Octave vein is one of Beveral similar reins alongthe base of the mountains, which are composed mainly ofa coarse-grained granite, such as encloses the Gong iw—xn ^v^. SECTION OF OCTAVE Wl one had sunk a shaft said to be nearly 400 ft. deep andfailed to get below the loose material of the wash. Thebottom of the mine was not accessible because the minewas. and still is. filled with water to about the The west limit of the old mine was in the Jokerfault immediately beyond the Joker shaft, and the work-indicated frantic but unintelligent efforts to recover thevein. A peculiar situation existed in that the evidence onthe surface indicated a displacement of about 200 the left, where a strong vein shows near the top of theridge, but the evidence underground equally stronglyindicated a displacement to the right. As the effects offaulting were diminishing with depth, the 850-ft. levelwas selected and the vein was recovered at the first at- and the Alvarado veins. At Octave, although the maithe mountain is granite, yel the vein is enclosed in coagrained grano-diorite that was Intruded prior to orejition. The v
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