In his report for 1st November, 1894, the Hydraulic Engineer recurs to the source of artesian water. He regrets that very little can be added to the previous assumption that it lies in the outcrops of the porous beds of the Lower Cretaceous formation on the western slope of the coast range; and he urges the necessity of accumulating facts relating to the bores already sunk, and complains that some owners neglect to give the department the information sought. He urges that legislation should make the furnishing of statistical matter of this kind compulsory. He doubts whether, in the absence of information as to the precise geological conditions subsisting beneath the surface, a map of Queensland can ever be prepared showing with certainty where artesian water can be found; but much may be done by accumulating accurate information with respect to the sinking of bores, nature of strata passed through, amount and pressure of flow, temperature of water, and depth beneath the surface whence obtained in each case. The map issued by the Geological Department would show the water-bearing areas, which means the formation in which water may be expected to be found; but bores can only be put down with reasonable certainty when the entire western country has been prospected. THE LIFE OF ARTESIAN WELLS. The life of an artesian well with a permanent spring, says the report, is limited by the durability of the casing. The corrosive action of some water is much greater than others; but there should be no difficulty in renewing the casing when necessary. It has often been discovered that an interruption of the flow, or its serious diminution, is the result of worn-out casing. So much is this the case that there is still controversy as to whether there is any general diminution in the supply consequent upon continuous waste. ARTESIAN WATER POWER.