. Bulletin . and description, , 152. Present underground development, schists, vein system, 155-172. Detailed descriptions of veins and wall rock, description of \-«ins and coun-try rock. , farm. 28-29. Mills. 46-47, 85-87, 116-117. Tuff. 43. Types of copper deposits, 209, development, ^Morrow mine, Amer-ican m i n e, de\-«lopment and descrip-tion of veins, Hughes mine, , and countrv rock, Greelev mine, 205-20

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. Bulletin . and description, , 152. Present underground development, schists, vein system, 155-172. Detailed descriptions of veins and wall rock, description of \-«ins and coun-try rock. , farm. 28-29. Mills. 46-47, 85-87, 116-117. Tuff. 43. Types of copper deposits, 209, development, ^Morrow mine, Amer-ican m i n e, de\-«lopment and descrip-tion of veins, Hughes mine, , and countrv rock, Greelev mine, mine. 148-151. Descriptive geology, , , tract, mine. , Mountain, 27-28, American mine, 38, descriptions of the veins and wall rock. description of the geologj, , , equipment, development,

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