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18 of the spiritualist philosophy. Science shows that within a comparatively brief period the entire matter of the organism is renewed; whence, then, triumphantly cries the psychologist, the identity of personal consciousness and the permanence of memory throughout so many transformations. I remember vividly a scene of twenty years ago; every particle of the matter of my brain has been renewed since then; what has remained and retained the impression? The structure of the brain has remained, and, whatever be the obscurity of the physical basis of memory, it is certain that it depends upon changes made in the structure of cellules, in a definite arrangement of their parts. And in the renewal of the matter of the brain the minutest structures are undisturbed—atom replaces atom with perfect fidelity. In the fossilization of an animal, when the tissues are replaced by new matter, the most delicate structures are preserved; if a phonogram were fossilized, the new matter would reproduce the original air as faithfully as the renewed brain reproduces the impressions of the past.

If there is no satisfactory evidence of the spirituality of the soul, the question of its immortality is superfluous. To entertain the thought seriously, we must admit in man an incorruptible substance, capable of thought and volition, without the co-operation or instrumentality of a brain. I do not for a moment consider that thought and volition are, as yet, satisfactorily explained as cerebral functions; no one can expect it of a science still in its infancy. But I see no proof that thought and volition have any intrinsic character evidently demanding a spiritual agency. All that is offered in the way of proof amounts to the assertion that they are at present very clearly and sharply marked off from all other forces. Science has bridged over many such gulfs in the past, and its constructive power is intensifying every year. Moreover, it is easy to see the vast progress that has been made in that direction during the last half century. The investigations of the psycho-physicist, of the pathologist, and of the criminologist point exclusively in the direction of Materialism. The evolution of the nervous system in the human individual and in the animal kingdom has a significance that points in the same direction. When Germany became sick of metaphysics, and commenced its laborious and brilliant career of physical science, it is remarkable how quickly its Idealism and Spiritualism were replaced by a universal Materialism. In every country the number of brilliant, conscientious thinkers who have rejected traditional belief, largely through the influence of physical science, is well known and deeply significant. Clearly the spirituality of the soul has not been too generously revealed to those who would most have benefited by its consoling promise.

CHRIST.

There are many who now look to the figure of Christ for the