190 TRANSACTIONS OF THE 



Nevada Territory, over fifty tons of coal, suitable for burning in grates 

 and even driving steam mills, bas been taken out. On tbe Humboldt 

 River samples of good coal bave been found, but the discovery bas never 

 yet been properly followed up. In Esmeralda a sort of petrified min- 

 eral pitcb is met with, which is inflammable and emits a strong heat. 

 "With these and many similar examples, it may be safely concluded that 

 we are not without our carboniferous fields, the contents of which will 

 be so much needed for the development of our other forms of metallic 

 wealth. 



PRODUCTION OF COAL, ETC. 



From Bellingham Bay, "Washington Territory, about nine thousand 

 five hundred tons of coal have been received during the past year, and 

 from Nanaimo, Vancouver Island, about six thousand tons in the same 

 period. 



From the Mount Diablo mines shipments of coal have steadity in- 

 creased during the past two years, and there has been for some time an 

 active demand in this market for all they have produced at rates ad- 

 vancing from eight dollars to twelve and fifteen dollars per ton. The 

 Pittsburg mine was opened in eighteen hundred and sixty-one, and dur- 

 ing that year produced about seven hundred tons per month ; during 

 eighteen hundred and sixty-two, about one thousand tons per month, 

 and for the year eighteen hundred and sixty-three, twelve hundred tons 

 monthly. The company have been working chiefly the out crop so far, 

 but are now tunnelling to cut all the veins, employing thirt}? hands. 

 This is an incorporated company, with two hundred shares of five hun- 

 dred dollars each, and could at present pay two per cent per month on 

 the capital stock. 



The Union mine commenced shipping coal October twenty-sixth, 

 eighteen hundred and sixty-two, averaging eight hundred tons per 

 month until November first, eighteen hundred and sixty-three. From 

 November first to December first, eighteen hundred and sixty-three, 

 six hundred tons were delivered; and from the latter period to January 

 first, eighteen hundred and sixty-four, twelve hundred tons were sent to 

 this city. In the spring it is thought that two thousand tons per month 

 can be sent to market from this mine. The company employs forty 

 hands, who are now working the first vein four feet wide ; they have 

 three other veins not yet prospected ; one at a depth of ten feet is nearly 

 three feet thick. 



Two tunnels are now being run toward the first vein, three hundred 

 feet each in length. 



From the bottom or end of the incline, (two hundred and fifty feet 

 from the surface,) drifts have been run on the vein both ways, from 

 which the coal is taken out. Sixty thousand dollars bave been expended 

 on the mine thus far, most of which sum bas, however, been derived 

 from sales of coal. This company is not incorporated, and is composed 

 chiefly of persons residing in this city. 



The Manhattan mine was opened in eighteen hundred and sixty. 

 During the year eighteen hundred and sixty-two, the average yield per 

 month exceeded five hundred tons. For the year eighteen hundred and 

 sixty-three, the mine had produced nine hundred tons monthly. Fifty 

 thousand dollars have been expended thus far on bringing the mine to a 

 paying condition. This sum has been taken out of the mine, being the 

 proceeds of coal sold. A level tunnel, two thousand feet in length, has 

 been run on the vein. Side drifts to cut other veins are in progress, at 



