is always possible to mine one stage deeper, so long as occult causes are evoked in the constructive work. The thought and energy of God are not banished; the method of application merely is made more fundamental, and so more truly omniscient.

There can no longer be any doubt that natural selection does expound many of the changes that have taken place among living things, more especially the inroads of one form of life upon another, and the disappearance of species. It should be borne in mind that natural selection, after the unexplained data with which it starts, --- the germ of the seed --- is a law directly in harmony with evolution. It explains the results which it covers by the necessary action of the external conditions under which they arise. It is, therefore, necessary to see how far it can discharge the labor laid upon it. It seems to us that only the merest fraction of the facts of the organic world can thus be accounted for, and those chiefly of obliteration rather than of construction.

(1) Natural selection does not explain how species, genera, families, orders, classes present themselves in all places and at all times in their systematic relations. Slight movement in all directions would not lead to this result, nor is it plain that natural selection alone, acting on the confused products of fortuitous change, would issue in this comparative Qrder. This supposition implies that the practical exigencies involve the same relations, the same species and the same genera which are contained in a scientific classification. The parallelism