by all analogy, after a sufficient span of existence our present laws will fade into unimportance. New interests will dominate. In our present sense of the term, our spatio-physical epoch will pass into that background of the past, which conditions all things dimly and without evident effect on the decision of prominent relations,
These massive laws, at present prevailing, ate the general physical laws of inorganic Natute. At a certain scale of obsetvation they are prevalent without hint of interference. The formation of suns, the motions of planets, the geologic changes on the earth, seem to proceed with a massive impetus which excludes any hint of modification by other agencies. To this extent sense-perception on which science relies discloses no aim in Nature.
Yet it is untrue to state that the general observation of mankind, in which sense-perception is only one factor, discloses no
