INDEX. 



199 



Page. 

 ProBpect Mountain, Altitude of 2 



, Dip of the formation in 12 



, Distribution of the ore in 11 



, Eruptive rocks in 11 



, Extent of the ore deposition in 169 



, Faulting in 170 



, Fissures in 16 



, Future of 192 



, Granite in 12 



limestone, Description of 14 



, Occurrences of 6 



, Manner of upheaval of 177 



, Occurrence of ore bodies in 72 



ore deposits, Extent of the 169 



, Section of 13,17,178 



, Shale belts of 14 



, Size of ore bodies in 72 



, Source of the ore in 91 



, Structure of 11 



tunnel, Formations in the 179 



, "Water in the 107 



Pseudomorphs of galena after calcite 99 



ore after limestone 98 



pyrite alter calcite 101 



limestone 101 



Pumpelly, Prof. R. ; on classification of ore deposits 119 



Pyrite as a matrix of gold and silver 136 



mineral 55 



, Effect of oxidation on 101 



, Gold and silver in the 137 



, Observations of a mass of 101 



Pyromorphite 58 



Qnartzite and limestone contact in Ruby Hill 180 



, Assays of 133-134 



.Connection of ore bodies with depressions in 



the 78,186 



, Faults in the .*.. 44, 45, 47 



in the Richmond and Albion 43, 183 



, Minerals in the ' 88 



, Occurrences 6 



.Physical nature of the 153 



, Relation of secondary fissure to the 48 



, Segregation of ore from the 88 



southeast of the compromise line 42 



, The narrow; description of 43,44 



; dip and strike of 47 



; manner of formation of 48 



.Upward motion of the 47 



Quartz-porphyry, Age of the 90 



as a source of the ore 90, 167, 187 



, Decomposition nf the _ go 



.Determination of lead in the 37,138 



in Adams Hill 105 



near Ruby Hill 20 



, Occurrences of 9 



Raibl compared with Eureka 103 



,Ore deposits of 08, 102 



, Theory of substitution applied to 103,189 



Rake, Use of the word 70 



Raymond, R. TV.; on miners' definition of lode 119 



, Testimony of m 



Read, T. J., Testimony of m 



Reducing agents, Experiments ou. 124 



litharge, Experiments ou 123 



material; quantity required 121 



Refining, Advantages and disadvantages of 164 



Refining at the Richmond 162 



Results, Brief outline of xiii 



, Inaccuracies of, in assaying 129 



Rhyolitoas a source of the ore 90 



, Assays of 134 



, Decomposition of 89 



dike in the Ruby-Dunderburg, Jackson, and 



Pho3uix 105 



eruption in the Tertiary 106 



filling of the maiu fissure 25 



from quarry 134 



, Occurrence- of 9 



of Purple Mountain 21 



Relation of, to the formation of ore 99 



Richmond claim, Ore bodies of the 72 



, Location of the 3 



Company, Organization of the 4 



; lawsuit with the Eureka Con. Co.. Ill 



furnaces, Description of the 159 



incline m 



mine, Chlorinatiou test of ore of the 134 



, Cross fissures iu the 20 



, Main fissure in the 30 



, Method of timbering in the. 156 



of prospecting in the 140 



, Potts chamber uf the 73, 112 



, Prospecting by assays in the 144 



, Quartzite in the 183 



shaft, Granite iu the. 177 



, Depth of the 12 



slag and speiss, Analyses of 160 



smelting works, Description of the 158 



Robbins, G. Collier, Early smelting operations by 3 



Rocks, Massive 17^ 



Rocky Mountains, Lead ores west of the 69 



Roth ; on formation of aragonite . 58 



Ruby-Dunderburg mine, Dip in the 12 



in the Hamburg limestone 8, 169 



, Ore deposits in the 73 



, Ores of the 63 



Ruby Hill, Altitude of 2 



.Cambrian in 113 



, Contact of quart zite and limestone in 25 



, Dip of the formations of 21 



, Extent of the limestone of 21 



shale of 21 



, Faults and fault movements in 20 26 



, Future of 192 



, Granite in 19 



mines, List of the 22 



, Position of 1 



, Quartz-porphyry eruption near 20 



, Relations of the formations of 22 



, Rhyolite near 2 1 



, Rocks of jjj 



, Succession of the formations in 26 



, The main fault in 94 



fault, Absence of ore bodies near the 104 



;mil the quartzite 32 



, Cause of the iq$ 



Description of the 113,180,181 



, Extent of the, in Eureka mines l'Q 



, Ore in the 173 



, Relation of the, to the Jackson fault .. 50 



Sawyer, Judge; iu the Richmond-Eureka suit ni 



Seams as indications of ore i -to 



