The fiercest struggles of the century have centred upon the description of the animate and inanimate universe contained in the first page of Genesis. In point of fact, there are two versions of the creation in Genesis, one of which represents the work as occupying the Creator six days, and the other one day only. The variation, however, offers little latitude; if the narrative is to be read in a natural sense, it compels the belief that the universe came from the hand of the Creator practically in its present form. The contrary theory of the gradual evolution of the universe from a chaotic condition had arisen in Greece, had been favoured by Scotus Erigena and Giordano Bruno, and came at length towards the close of the eighteenth century to be placed on a sound scientific basis. Starting from some rudimentary theories of Newton and Descartes, Immanuel Kant, the great German philosopher, presented to the scientific world what is now known as the "nebular hypothesis; J the hypothesis was at once adopted by Laplace, the eminent French astronomer, supported by physical and mathematical reasoning, and imposed upon the acceptance of scientific men as the most probable mode in which our solar system had originated. Contrary to the traditional view, the new theory taught that the formation of our solar system alone had occupied millions of years; that planets and satellites were annular fragments cast off by a vast condensing and rotating nebula, of which the sun is the actual nucleus, still in process of condensation. Such a theory was in diametrical opposition to the Genesiac version, and "throughout the theological world," says Dr. White, "there was an outcry at once against Atheism, and war raged fiercely." But the power of the Church had happily waned, and evidence was accumulated zealously by astronomers in favour of the new theory; to-day it is one of the most brilliant, instructive, and impregnable positions of astronomy. It has given physicists an admirable basis for an explanation of the solar expenditure of light and heat; it fully harmonizes with the movements, positions, configuration, and comparative consistency and temperature of the planets and their satellites; it is in perfect analogy with the nature of the stellar universe (to which it has been extended) which has been unveiled by more perfect telescopic and spectroscopic research. The discovery of true nebulae, in every stage of condensation,