The experimental study of osmotic morphogeny adds its weight of evidence in the same direction. When we see under our own eyes the cells of calcium become organized, develop and grow in close imitation of the forms of life, we cannot doubt that such a transformation has often occurred in the past history of our planet, and the conviction becomes irresistible {172} that osmosis has played a predominant role in the history of our earth and its inhabitants. It is a matter of astonishment that the scientist has taken no notice of the active part which osmosis has played in the evolution of our earth. On the effects of this most important physical phenomenon science has. .h.i.therto remained entirely mute.