U8E DREDGES TO MINE GOLD. Much Wealth Being Taken From Fields of California. The latest evolution in tho systems and appliances of gold mining Is that of the dredge. Tho yield In California Califor-nia from tho dredges now exceeds the combined yield of tho hydraulic and drift mines of tho state, nnd also greatly exceeds tho placer yield. The system of tho dredging Is practically a form of placer mining, where Improved Im-proved modern appliances are utilized to handle largo quantities of auriferous aurifer-ous material In a brief space of time, and without the use of water under high heads, or the necessity of long tunnels. As a usual thing, ground supposed sup-posed to be suitable for dredging Is not bought outright, whllo still un-proven. un-proven. It Is taken under bond for a specified time nnd for a specified price, those who bond It being expected ex-pected to go to the expenso of running run-ning tho prospecting drills and of proving tho ground. If tho expected values aro not forthcoming tho bond lapses, whereas. If tho prospecting shows tho ground to bo vnlucablc for tho purposes desired, then tho purchase pur-chase Is concluded according to the terms of tho bond. Aside from n partial par-tial payment, tlnio enough Is usually given so that a certain proportion of the purchase price may bo obtained from tho ground Itself through the medium of tho dredges. Tho price of avallablo ground of this character Is gradually being advanced, bo that, except ex-cept In unproven localities, It may no longer bo bought nt low cost. Sunset Magazine.