When matter alone is concerned we know exactly how it will act under given conditions. When life is added, the problem becomes more complex. The general law of evolution and the special law of natural selection in the development of species are accepted facts, although we cannot with success apply to them mathematical formulæ. When mind is added to life, the problem becomes still more complicated and mathematical exactness still less likely to be attained. Many facts, however, are being ascertained in psychical science, and some principles are being established which help to bring order out of confusion and shed light on some dark places. The recognition of a subliminal self as forming a part of the psychical organization of man will throw light upon many obscure mental phenomena and bring order out of seemingly hopeless confusion. Placed before us as a working hypothesis, many other facts, before errant and unclassified, group themselves about it in wonderful clearness and harmony. Granting, then, provisionally at least, the reality of the secondary self, what are its relations to the primary self and their common physical organization, and how came it to occupy these relations? Mr. Frederick W. H. Myers, to whom I have already referred, whose acute intellect and scholarly attainments have been of the highest value to the society in every department of its investigations, has also taken up this subject with his usual skill and judgment. He looks upon it from the standpoint of evolution, commencing with the earliest period of animal life. He compares the whole psychical organization, together with its manifesting physical organization, to the thousand looms of a vast manufactory. The looms are complex and of varying patterns, for turning out different sorts of work. They are also used in various combinations, and there are various driving bands and connecting machinery by which they may severally be connected or disconnected, but the motive power which drives the whole is constant for all, and all works automatically to turn out the styles of goods that are needed. "Now, how did I come to have my looms and driving-gear arranged in this particular way? Not, certainly, through any deliberate choice of my own. My ancestor, the ascidian, in fact, inherited the business when it consisted of little more than a single spindle; since his day my nearer ancestors have added loom after loom."