that dip steeply seaward. Those heaps were merely the crumbled out contents of two irregular cavities in the rock, they are as natural as any talus or heap of that kind, and the mud along the edge of the water for miles is mixed with quap, and is radio-active and lifeless and faintly phosphorescent at night. But the reader will find the full particulars of my impression of all this in the Geological Magazine for October, 1905, and to that I must refer him. There too he will find my unconfirmed theories of its nature. If I am right it is something far more significant from the scientific point of view than those incidental constituents of various rare metals, pitchblende, rutile, and the like, upon which the revolutionary discoveries of the last decade are based. Those are just little molecular centres of disintegration, of that mysterious decay and rotting of those elements, elements once regarded as the most stable things in nature. But there is something—the only word that comes near it is cancerous—and that is not very near, about the whole of quap, something that creeps and lives as a disease lives by destroying; an elemental stirring and disarrangement, incalculably maleficent and strange.
This is no imaginative comparison of mine. To my mind radio-activity is a real disease of matter. Moreover it is a contagious disease. It spreads. You bring those debased and crumbling atoms near others and those too presently catch the trick of swinging themselves out of coherent existence. It is in matter exactly what the decay of our old culture is in society, a loss of traditions and distinctions and assured reactions. When I think of these inexplicable dissolvent centres that have come into being in our globe—these quap heaps are surely by far the largest that have yet been