'The mind may be regarded as a force, the result of nervous action, and characterized by the ability to perceive sensations, to be conscious, to understand, to experience emotions, and to will in accordance therewith. Of these qualities, consciousness resides exclusively in the brain, but the others, as is clearly shown by observation and experiment, cannot be restricted to that organ, but are developed with more or less intensity, in other parts of the nervous system.'--HAMMOND. Thus do the two extremes of theology and science meet upon a common ground of dreamy emptiness, and we who confess our comparative ignorance are comforted by the thought that some other things have been 'hid from the wise and prudent and revealed unto babes.' Yet, while feeling thus, it must be admitted that the existence of spirit and of a Creator do not yet seem capable of logical demonstration. The denial of their existence is not incompatible with a profound acquaintance with material forms and their operations; and, on the other hand, the belief in their existence and substantial nature, and in their powers as first causes, have never interfered with the recognition of the so-called material forces, and of the organisms through which they are manifested. At present, at least, these are purely matters of faith; but although the Spiritualist (using the term in its broadest sense as indicating a belief in spirits), may feel that his faith discloses a beauty and perfection in the union, otherwise imperceptible by him, there is no reason why this difference in faith should make him despise or quarrel with his materialist co-worker, for the latter may do as good service to science, may be as true a man, and live as holy a life, although from other motives. The differences between religious sects are mainly of faith, not of works, and the wise of all denominations are gradually coming to the conviction that they will all do God more service by toleration and co-operation than by animosity and disunion. And so I hold that, until the spiritualist feels himself able to demonstrate to the unbeliever the existence of spirit and of God, as convincingly as a mathematical proposition, there should be no hard words or feelings upon these points. For the present they are immaterial in every sense of the word; and so long as he bows to the facts and the laws of Nature, and deals with his fellow men as he would be done by, so long will I work with him, side by side, knowing, even though I cannot tell him so, that whether or not he joins me in this world, we shall meet in the other world to come, where his eyes will be opened, and where his lips will at least acquit me of bigotry and intolerance." * * * * * CHAPTER XV. THE HUMAN TEMPERAMENTS.