NEVADA. 



NEW BRUNSWICK. 



539 



is termed a "horse" is a potash feldspar, and 

 named by the miners porphyry. In the lan- 

 guage of Prof. Rogers the following may he 

 stated as the composition of the ore-mass : 



Quartz, the largest constituent, constituting the 

 matrix or " gangue." 



Gold, metallic. 



Silver, metallic. 



Silver-glance, or sulphite of silver. 



Polybasite (silver, copper, iron, zinc, antimony, 

 arsenic, sulphur). 



Stephenite (silver, copper, iron, antimony, sul- 

 phur). 



Blende (zinc, sulphur). 



Galena (silver, lead, sulphur). 



Horn silver in small amount (silver chlorine). 



Alumina (as clay). 



Carbonate of lime. 



Sulphate of lime. 



In this ore the gold is in the metallic state. The 

 silver is metallic, and also sulphide and chloride, and 

 likewise in the complex mineral forms above named. 



The iron, copper, lead, zinc, antimony, and arse- 

 nic, are in a condition of combination with sulphur 

 as sulphides of those metals. 



The silica and clay are simply in mechanical asso- 

 ciation with the above. 



At the works of the mines, as well as at the mills, 

 all the ore delivered is sampled as fairly as possible, 

 that the averages may be obtained for assays, for the 

 purpose of adjusting the accounts between the mines 

 and the mills. 



With the data in our possession, and the maps be- 

 fore us, I may venture upon the following calcula- 

 tions, and estimate the total ultimate product of the 

 gold and silver of the ore-body of these two mines: 



On an inspection of the official surveys exhibiting 

 the galleries and cross-cuts, it would seem fair to 

 conclude that, with proper allowances, the ore-body 

 equals an amount which, taken at the actual assays, 

 would give, as the ultimate yield of the two mines, 

 $300,000,000 ; but to guard against a chance of over- 

 estimating, I take the assays at one-half that ascer- 

 tained, which will place the production at not less 

 than $150,000,000. 



With a view to make due allowance for interrup- 

 tions to the continuity of the body of ore which lies 

 between the 1,500 and 1,400 feet levels, the whole of 

 the ore contained between the 1,400 and 1,300 feet 

 levels is thrown in, and not embraced in the estimate. 

 It may also be stated that the very promising ore 

 developments below the 1,550-feet level, the assays 

 of which run very high, have also been omitted in 

 the calculations. 



In a report made in March to Director Lin- 

 derman, Prof. Schirmer, of the Denver mine, 

 estimated that the probable production of the 

 Comstock Lode for 1875 would amount to 

 $35,000,000, and for 1876 to $50,000,000; and 

 that the yield of the Consolidated Virginia and 

 California mines alone would be at the rate of 

 $3,000,000 a month with the completion of the 

 additional machinery in process of construction. 

 The Belcher, Crown Point, and Consolidated 

 Virginia, the three great mines of. the Corn- 

 stock Lode, have yielded during the forty-eight 

 months ending March 31, 1875, $56,233.479. 

 Prof. Schirmer's estimates of the yield of the 

 Comstock Lode will increase the annual bul- 

 " lion product of the United States for this year 

 to $85,000,000, and for the next year to $100,- 

 000,000. The bullion yielded by the Comstock 

 is known to commerce as " dore silver," or sil- 

 ver containing sufficient gold to defray the ex- 



pense of separating the metals. Its average 

 weight is about nine-tenths, and its value about 

 sixty per cent, silver. The weight of the bul- 

 lion to be dissolved in acid in order to separate 

 the two metals will be about 1,000 tons per 

 annum, and will consume about 3,000 tons of 

 acid. 



The Consolidated Virginia is composed of 

 two mines the Sides, 500 feet, and the White 

 & Murphy, 210 feet, in all 710 feet in length 

 along the lead, the width being as far as it ex- 

 tends each way, the distance not having yet 

 been determined, as the walls of the mine have 

 not been found. The two companies named 

 were organized separately in 1859. Their 

 mines were worked with varying success till 

 about 1872, to the depth of 500 feet. The 

 stock was on the market at that time, and 

 four men bought the majority of shares, and 

 the mines were consolidated under the name 

 they now bear. The four men who bought the 

 controlling interest and yet hold it are John 

 W. Mackay, James 0. Flood, James G-. Fair, 

 and W. S. O'Brien. The firm in Virginia City 

 is known as Mackay, Fair & Co., and in San 

 Francisco as Flood & O'Brien. 



The stock of the Consolidated Virginia con- 

 sists of 108,000 shares, par value $100 each. 

 Its market value is from $340 to $360 a share. 

 Of these 108,000 shares, Mackay, Flood, Fair, 

 and O'Brien, own 62,000. Between 3,000 and 

 4,000 men are employed in the Consolidated 

 Virginia. 



NEW BRUNSWICK. The population and 

 land area by counties are as follows : 



The chief executive officer is the Lieutenant- 

 Governor, appointed by the Governor-General 

 of the Dominion in Council for five years, as- 

 sisted by an Executive Council of nine mem- 

 bers (President of the Council, Secretary and 

 Receiver - General, Attorney - General, Chief 

 Commissioner of Public Works, Surveyor-Gen- 

 eral, and four without office), appointed by him- 

 self and responsible to the Assembly. The le- 

 gislative authority is exercised by a Legislative 

 Council of fifteen members, appointed by the 

 Lieutenant-Governor in Council for life, and a 

 House of Assembly of forty-one members elect- 

 ed by districts. Voting is by ballot, and a 

 small property qualification is required for 



