Let us remember that a few original intimate differences exist in our harmonious systems: the main directions of the intimate protoplasmic structure including polarity and bilaterality. There are therefore three times two specified poles in each of these systems, at least in bilateral organisms, but no other differences are present in them. A few very simple cases of harmonious differentiation might indeed be understood on the theory of a disintegrating chemical compound in connection with these few differences. Imagine that the original compound, of the quantity *a*, is disintegrated to the amount of *a*_1; from *a*_1 are formed the two more simple compounds, *b* and *c*, both of them in definite quantities; then we have the three chemical individuals, *a-a*_1, *b* and *c*, as the constituents of our harmonious system; and it now might be assumed, without any serious difficulty, though with the introduction of some new hypotheses, that the two poles of one of the fundamental axes of symmetry attract *b* and *c* respectively, *a-a*_1 remaining unattracted between them. We thus should have the three elementary constituents of the system separated into three parts, and as they all three are of a definite quantity, their separation would mean that the system had been divided into three parts, *a-a*_1, *b* and *c*, also with regard to its proper form. It is clear, that by taking away any part of the original system, by means of operations, there would be taken away a certain amount of the original compound; say that *a/n* is left; then, of course, the three constituents after the partial disintegration would be *a-a_1/n*, *b/n* and *c/n*, and so it follows that the proportionality of localisation would really be preserved in any case.