Shall we make it "rain from the earth, when the sky fails"? is now, thanks to an editor, the great Dakotan question. It is a question of many facets. What does it cost, will it pay, is it safe, or must it ultimately poison the ground by sowing the land with salt like a vandal conqueror, and creating a Sahara for immediate posterity? Finally, if it is to be done on a proper scale, how shall the burden of the introduction be borne; by the township, the county, the State, the nation, or by private enterprise? Let us take up these points _seriatum_. Professor Upham, of the United States Geologic Survey, a man of unquestionable honesty and no mean authority generally, thinks that the cost alone demonstrates the futility of attempting the artesian system. He bases his opinion on the Jamestown well, which cost $7,000. Yet if, as there seems to be no doubt, irrigation will increase the wheat crop by at least ten bushels an acre, even this large expense would be warranted by the increase in land value. But it is probably not known to Professor Upham that wells between Jamestown and Huron are being sunk now for half, in some cases one-third, and in a few cases one-tenth of his reckoning. So with this change of former figures, the question of cost may be said to cut no figure. But will it pay permanently, and to what extent? Prof. G. E. Culver answers this question with great ability. He says positively that it will not materially change climate nor by attraction increase appreciably the annual rainfall, though he thinks it may tend to equalize the distribution of the rainfall. As to climate one might be inclined to disagree with him. There has certainly been a great change in the climate of Utah since irrigation was begun there, and an appreciable change in some parts of Southern California, though not in Colorado, as far as can be learned. It is a well-known fact that rain storms follow the course of streams, and as a system of irrigation multiplies universally the evaporation of a region, besides multiplying small streams and enlarging others, and as hollows would often be ponded by the waste water, an increase in the area watered by local showers is naturally to be expected. Moreover, the burning winds that so often scorch the crops will be somewhat softened by traversing so much moist ground and so many streams. Trees, too, grow more readily in the moistened land, and in turn protect the land from the hot winds. Given a proper system of irrigation in operation for twenty-five years, and the epithet, treeless, need not be applied to Dakota.