OCR Text |
Show I A lett kb from the Black Hills does net give much encouragement to the owners of the new-fangled mining machinery, in which direction there is no end of inventions. Nearly every now invention of quartz crushing machinery has uudergone a test there, and Btill nothing has been able to supercede the old dead-weight drop stamp bo universally adhered to throughout the Rocky mountains and tho Pacifio coast. St. Louis and Chicago theories have labored incessantly inces-santly but vainly against the practical method long since adopted as the best, and the promulgators of new-fangled ideas are the principal losers. |