k State may be restoredto fertility. The decided success of irrigation works inCalifornia, Utah, and Colorado indicates the methodsby which we are still further to reduce the profitlessarea which we formerly designated as the Great Ameri-can Desert; and the entire country cannot fail to feelthe… … only from each end, but by sinking a shaft midwaytwo additional working faces will be provided, makinga total of four points of attack. The four sets of tun-neling plant required have all been supplied by Messrs.Schram, and amount in toto to eight locomotive typeboilers, four air compressors, with…
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