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Show IN CALIFORNIA. 17 lid, another pours on the water, whilst a third is engaged in rocking the cradle by the handle attached to it for the purpose. In this way these 1nen keep each other constantly ctnployed ; and, indeed, this cradle, like its prototype, has often proved the bond of union between individuals who would otherwise have separated, for this simple reason, that one 1nan could not work it half so profitably alone. The cross pieces, observable at the bottom, serve to intercept the gold as it flows towards the stnaller end of the machine, whilst the dirt is carried off by the admixture with the water produced by the continual " rocking." As the earth becomes thoroughly dissol,ved, the gold naturally gravitates to the bottom; and thus it is impossible for any bnt the very finest particles of the ore to escape. The second machine, in importance, is the gold-borer. It is particularly useful in examining the bottorn of streams, and consists of a short conical cylinder at the end of a long handle, containing inside, at its lower extremity, a valve, arranged so as to ad1nit the earth |