The _coccyx_ is likewise cited by Darwin as an example of an inherited rudiment in man. “In man,” he says, “the os coccyx, together with certain other vertebræ hereafter to be described, though functionless as a tail, plainly represents this part in other vertebrate animals.” (_Op. cit._, ch. I, p. 42.) That it serves no purpose _as a tail_, may be readily admitted, but that it serves no purpose _whatever_, is quite another matter. As a matter of fact, it serves for the attachment of several small muscles, whose functioning would be impossible in the absence of this bone. Darwin himself concedes this; for he confesses that the four vertebræ of the coccyx “are furnished with some small muscles.” (_Ibidem._) We may, therefore, admit the homology between the human coccyx and the tails of other vertebrates, without being forced to regard the latter as a useless vestigial organ. It may be objected that the attachment of these muscles might have been provided for in a manner more in harmony with our ideas of symmetry. To this we reply that Helmholtz criticized the human eye for similar reasons, when he said that he would remand to his workshop for correction an optical instrument so flawed with defects as the human eye. But, after all, it was by the use of these selfsame imperfect eyes that Helmholtz was enabled to detect the flaws of which he complained. When man shall have fully fathomed the difficulties and obstructions with which organic morphogeny has to contend in performing its wonderful work, and shall have arrived at an elementary knowledge of the general laws of morphogenetic mechanics, he will be more inclined to admire than to criticize. It is a mistake to imagine that the finite works of the Creator must be perfect from _every_ viewpoint. It suffices that they are perfect with respect to the particular _purpose_ which they serve, and this purpose must not be narrowly estimated from the standpoint of the created work itself, but from that of its position in the universal scheme of creation. All such partial views as the Helmholtzian one are false views.