No one has done more than he who presides over the Geological Society this year2 to emphasize the work of water in the deposition of ore and in the metamorphism or change of rocks as they pass down through the two zones of katamorphism, that of leaching or weathering and then that of cementation to the deeper zone of anamorphism or upbuilding. His colossal work is, however, largely a systematic application of the principles of modern chemistry and physics to general geological processes, and still leaves room for gleaners to work out detailed applications. Much as the role of underground waters is discussed and masterly as is the handling of the general principles of their action, there are no analyses of such waters given in the Treatise on Metamorphism.
I have been for some time studying the mineral waters and mine waters of Michigan. It is not my wish . . .