But this power of sending out a subtle influence, call it magnetism or what you will, is not confined to operations upon the human subject. Two ladies of my acquaintance experimented on two rose-trees, which, to all appearances, were both in equally good condition. They daily blessed one and cursed the other, with the result that at the end of a month the anathematized plant had withered up from the roots, while the other was in an abnormally flourishing condition. Nor are we entirely without scientific backing even in such a case as this; for Professor Bose tells us in his work on the "Response of Metals," that not only can they be poisoned by certain chemicals, so as to deprive them of their normal qualities, but that they can be mesmerized into a similar condition. Such facts as these therefore give considerable support to the theory of the existence in everything of a "soul of the subject," which responds after its own manner to the power of human thought. In what manner, then, is this influence conveyed? It is here that our study of etheric waves comes to our assistance, by carrying the same principle further, and picturing the working of the known Law under unknown conditions. It will at least enable us to form a working hypothesis. I have stated that our actual commercial application of the etheric waves extends from the ultra-violet waves used in photography, and measuring only 1/254,000 of an inch, to those measuring many miles employed in wireless telegraphy; but this practical application by no means exhausts the conceivable possibilities of etheric vibrations; for not only do we find a gap of five octaves of as yet unknown waves between the dark heat group and the Hertzian group, but mathematically there is no limit to the greatness or smallness of the waves, and the scale may be prolonged indefinitely in either direction. Nor is this to be wondered at; for if we consider that vibration is not a progress of individual particles from one place to another, but the alternate rising and falling of the substance at the same point, and that the ether is a homogeneous and universally present substance, it is obvious that there is nothing to limit the minuteness or the greatness of the intervals at which the rising and falling will occur. Therefore we have an unlimited field for our imagination to play about in. Then, if we further reflect that all forms are built up of denser or finer aggregations of ether, and that what determines the generic form of anything is its cosmic soul, or the generating principle of the _class_ to which it belongs, it follows that this soul must have a corresponding form, however inconceivably fine may be the etheric condensation which thus differentiates it from other souls, and prevents it from all being mixed up together in an indistinguishable mass. If now, we combine these two facts, that the soul of anything must have a form, however fine, and