However, no such man is needed, and we believe that it is pure democracy to rejoice that, in this department as in others, it is no longer some one great genius that concentrates within himself the vital energy of his time. It is many working together who do the work. The waters spring up in every direction, as little rills, each of which performs its part. We see a movement corresponding with this in the region of exact science, and we have no doubt that in the course of fifty years a new spiritual circulation will be comprehended as clearly as the circulation of the blood is now. In metaphysics, in phrenology, in animal magnetism, in electricity, in chemistry, the tendency is the same, even when conclusions seem most dissonant. The mind presses nearer home to the seat of consciousness the more intimate law and rule of life, and old limits, become fluid beneath the fire of thought. We are learning much, and it will be a grand music, that shall be played on this organ of many pipes. With regard to Mr. Grimes's book, in the first place, we do not possess sufficient knowledge of the subject to criticise it thoroughly; and secondly, if we did, it could not be done in narrow limits. To us his classification is unsatisfactory, his theory inadequate, his point of view uncongenial. We disapprove of the spirit in which he criticises other disciples in this science, who have, we believe, made some good observations, with many failures, though, like himself, they do not hold themselves sufficiently lowly as disciples. For we do not believe there is any man, _yet_, who is entitled to give himself the air of having taken a degree on this subject. We do not want the tone of qualification or mincing apology. We want no mock modesty, but its reality, which is the almost sure attendant on greatness. What a lesson it would be for this country if a body of men could be at work together in that harmony which would not fail to ensue on a _disinterested_ love of discovering truth, and with that patience and exactness in experiment without which no machine was ever invented worthy a patent! The most superficial, go-ahead, hit-or-miss American knows that no machine was ever perfected without this patience and exactness; and let no one hope to achieve victories in the realm of mind at a cheaper rate than in that of matter. In speaking thus of Mr. Grimes's book, we can still cordially recommend it to the perusal of our readers. Its statements are full and sincere. The writer has abilities which only need to be used with more thoroughness and a higher aim to guide him to valuable attainments. In this connection we will relate a passage from personal experience, to us powerfully expressive of the nature of this higher agent in the intercourse of minds.