VITALIZED DARKNESS.--THE NARROWS IN SCIENCE. "In studying any branch of science men begin and end with an unknown. The chemist accepts as data such conditions of matter as he finds about him, and connects ponderable matter with the displays of energy that have impressed his senses, building therefrom a span of theoretical science, but he can not formulate as yet an explanation regarding the origin or the end of either mind, matter, or energy. The piers supporting his fabric stand in a profound invisible gulf, into which even his imagination can not look to form a theory concerning basic formations--corner-stones. "The geologist, in a like manner, grasps feebly the lessons left in the superficial fragments of earth strata, impressions that remain to bear imperfect record of a few of the disturbances that have affected the earth's crust, and he endeavors to formulate a story of the world's life, but he is neither able to antedate the records shown by the meager testimony at his command, scraps of a leaf out of God's great book of history, nor to anticipate coming events. The birth, as well as the death, of this planet is beyond his page. "The astronomer directs his telescope to the heavens, records the position of the planets, and hopes to discover the influences worlds exert upon one another. He explores space to obtain data to enable him to delineate a map of the visible solar universe, but the instruments he has at command are so imperfect, and mind is so feeble that, like mockery seems his attempt to study behind the facts connected with the motions and conditions of the nearest heavenly bodies, and he can not offer an explanation of the beginning or cessation of their movements. He can neither account for their existence, nor foretell their end." "Are you not mistaken?" I interrupted; "does not the astronomer foretell eclipses, and calculate the orbits of the planets, and has he not verified predictions concerning their several motions?"