Modern Methods of Water-Finding

Abstract

Gillman has emphasized in numerous lectures and articles that the key factor in the expansion of agriculture in Tanganyika is the supply of domestic water, and J. Glover, in the previous number of this Journal, showed that by choosing t:he most suitable crops, even the semi-arid areas can be agriculturally productive. It is therefore of particular interest that we publish in this issue an article by Dr.E. Parsons on the principles of water-finding. In looking for underground water supplies the geologist has only a few pieces of a jig-saw puzzle, and he has to put these in their proper, places in order to find the general picture and to know the shape of the missing pieces. At first sight there appears to be a certain amount of guess-work in water-finding, but it is really a specialized form of acute reasoning which permits a geologist to work out the relations and characteristics of the underground rock formations and to judge the most likely places for well-boring.