606. Gneiss and mica-schists are products of a more mighty operation of light than granite. They are nearer to the upper layers of water.

607. After the granitic rain, or after the formation of granite, the sphere of water was no longer perfectly transparent; but water was now found also in the primary valleys, in which the light had more power, and thus greater capacity for splitting. During the formation of granite the water has only become polar by light; but, as it was there wholly transparent without opposition, it could never attain to a perfect dualization. In the second earth-rain and in the valleys, the light on the contrary produces dualization of the fundamental earths, since the sides of the mountains afford opposition to the light, become themselves polar against the water, and at the same time heat is produced.

608. Gneiss and mica-schist enter into a polar relation with gravity, and that indeed as a Different to an Identical, as periphery to centre or as light to gravity.

609. Now the falling granite had in part lost its quartz and obtained a predominance of feldspar. Furthermore as the water-globe was already greatly collapsed, the crystals thus originated in larger drops, and occurred besides in water already stagnant or flowing. The schistose gefüge must have emerged as well through the preponderance of the laminar felspar, as by the flowing of water and the attraction of the granite-walls. This schistose granite is gneiss.

610. When the gneiss was thrown down the talc predominated in the water; it now fell in the same manner with less quartz and feldspar, and was deposited in a still more schistose form than mica-schist.

611. Granite, gneiss and mica-schist are the first that together form a Whole, each factor whereof has been evolved in an equally perfect manner.

LAMINATION.

612. By this active antagonism of granite to gneiss and mica-schist the Lamination of the latter is determined. Every particle of gneiss is attracted from the granite-wall and placed in a definite direction, corresponding to the polar operation of granite; the particles of gneiss already deposited attract the coming ones, and so on. The parts of the gneiss and mica-schist are not deposited upon the granite by virtue of their dead or inert gravity, but by virtue of living polar attraction. They are not therefore deposited in the depth of the primary valleys, nor do they fill up the latter; but they are attracted by the granite-walls and deposited to a greater or less extent like laminæ of crystallization, in large perpendicular layers.

613. By these two precipitations the primary valleys were in part filled up, and partly narrowed by the polar attraction of the walls. The primary valleys therefore are no longer present upon the earth, unless everything be called a primary valley that has not arisen or been excavated by the current of water.

614. Gneiss and mica-schist have indeed taken part in the primary crystallization, yet are, however, only its last movements, as the water had already met with resistance, and was partly stagnant; their mass therefore is not so purely crystallized as granite. They are not parts of the earth's nucleus, but lie only like a crust upon it like hollow crystals.