Irrigation. Colorado Canals important factor for state. R.M.News.June 7,1871 p.2 c.l Water in abundance is grand fertilizer. R.i^.News.June 22,1871 p.l c.5 Premium offered by News for, best essay on subject. R.M.News.Aug. 29,1871 p.l c.5 Advantages; how managed. R.M.News.Aug. 30,1871 p.2 c.l Warning to man who tears away sluice over ditch. R.M.News.Nov. 2,1871 p.l c.2