GENERAL INDEX. 



421 



Strombeck, A. von, on electricity of metalliferous veina, 



309, 310 



Subatitution, theory of 387 



Succeasiou of eruptive rocka, means of determining ... 188 



Su^arLoaf Mountain (F. :i), later hombleude-andesite of 70 



lithological character of ..14, 394 



Sugar quartz, origin of the 272 



Sulphydric acid in water from the Yellow Jacket 240 



Sulphurets, formation in the vein, von Richthofon on. .. 20 



Sulphuric acid aa solvent 226, 386 



Summary 368 



Supplies, table of, brought to the Lode in 1879. - - 8 



used by the mines and mills in 1879. . . 8 



Surface, electrical survey over 351 



Survey, thermal. (See Thermal survey.) 



Sutro road, earlier homblende-andesite from the 124 



Sutro Tunnel, air shaft, augite-andesito near 129 



analysis of earlii^r diabase from the 



table following page 151 



assay of diabase from the 154, 155 



assays of rock from the 223 



augite-andesite from the ;27, 129, 201, 202 



cross-section through the 274 



earlier diabase from the 



33, 112, 114, 115, 151, 152, 107, 406 

 I'jirlier homblende-andesite from the. 54, 124, 199 



epidote in the 212 



eruptive diorite in the 10.5, 192 



experiments on kaolinization of diabase 



from the 236 



later homblende-andesite of the 24, 203, 205 



laterals, temperatures in 261 



lovtl, horizontal section on the 281 



logarithmic character of seclion on 180 



temperature curve influences from the 263 



temperature observations in the 231, 244, 



258, 260, 392 



Syenite, von Richthofen on 12 



Zirkel on the supposed 12 



Szabf'i, .1., feldspars determined by method of 405 



on propylite 90 



Table of analyses follows page 151 



analyses 153, 152 



assays 154 



school attendance in Storey County 5 



supplies brought to the Lode in 1879 8 



supplies used by the mines and mills in 1879 8 



the bullion product from tailings 11 



the bullion product of other mines in the District 11 



the bullion product of the Lode 10 



Tailings, bullion product from 11 



Temperature, difficulties in obtaining mean 229 



disturbing influences affecting, in mines.. 229 



equation between depth and 244, 258 



in the Sutro Tunnel, equation between dis- 

 tance fromtheLode 



and 245 



independentof surface 



radiation 260 



measurement of small increments of.. .291,295 

 (Set Heat.) 



normal increment of 229 



observations 231, 244 



in the Sutro Tunnel laterals. . 261 

 resnltsfrom .....261 



Temperature equations, agreement between, for the 



shafts and the tunnel 2 



high, of the mines 2 



in mine workings not accordant 2 



reasons for some fluctuations 2 



source of high, on the Lode 2 



Tei-minals, description of 318, 3 



electromotive force between 3 



polarization of 3 



Thalen, R.. magnetic indications of deposits of iron ore. 3 



Theory of lateral secretion affirmed 2 



Thermal su rvey 244, 3 



conclusions from the 2 



results of, independent of accurate ther- 

 mometers '. 2 



Thermo-electromotive force, correction for extraneous 



effects. 2 



Thermoelement 2 



calibration of 298,3 



constants of 299,300,301,302,303,3 



Thermometers, results of thermal survey independent of 



accurate 2 



Thomson, SirW., increment of temperature adopted by. 2 



Timber, consumption of, in the mines 



source of supply on the Comstock 



Timbering, J. D. Hague on the system of 5 



Titanite possibly identical with leucoxene 2 



Topography r.ear the Lode a result of faulting 1 



Toumialine in eruptive diorite 



in metamorpbic diorite 44, 1 



Trachj-te, sanidin, von Richthofen on 



Ti-ansfoi-mationsinthevein, chemical, von Richthofen on. 



Transportation, means of, to the Comstock 



Transylvania, propylite of 



Truckee Range, propylite from 1 



Tschermak's feldspar theory, evidence in support of 4 



Twenty-tive-hundred-foot level, partial section on the . . 2 

 Twin Peak, north (C. 4), analysis of earlier homblende- 

 andesite from table following page 1 



north, assay of earlier hornblende-andesite 



from 1 



north, earlier homblende-andesite of 34, 6 



118,4 



south (C. 4), andesite of 



propylite of the 86, 



fT^jifon shaft (D..^), assayof granular diorite from the 1 



cross-section through the 2 



diorite of the 35,38, 



eruptive diorite northeast of the 1 



Utahf diabase in the 2 



diorite of the 96, 4 



earlier diabase in the l 



younger hornblende-andesite near the 34, 66, 69, 



Utah, propylite of 



Vein, contents of the 2 



(See Comstock and Lode.) 



Vein-matter, angular fragments of country rock in 



nature of the so-called 271,2 



Vein- minerals, how dissolved 2 



origin of 2 



precipitation of, from solution 2 



Veins, application of theory of faulting to 186, 3 



Ventilation of the mines, Church on 



Vertical longitudinal projection of bonanzas 2 



Virginia and Gold Hill, population of 



