Of course the evidence upon this point must always be more or less unsatisfactory—first, because the powers of introspective analysis at the particular time when they first become nascent must be most incompetent to report upon the circumstances of their own birth; and next, because we know how precarious it is to rely on adult reminiscences of childhood’s experience. Therefore, I have only mentioned this evidence for what it is worth, in order to remark that it has no important bearing upon our present subject. Whether or not there is in the life of every human being some particular moment between the ages of two and three when the fact of its own personality is revealed to the growing mind, the results of the present analysis are in no way affected. For, even if such were supposed to be invariably the case, it could not be supposed that the revelation were other than low and feeble to a degree commensurate with the still almost infantile condition of all the other mental powers. Nor could it be doubted that this revelation needed to be led up to by that gradual process of receptual evolution with which my analysis has been concerned, and which in the terms of our previous analogy we may liken to the pre-natal life of an embryo. While, on the other hand, as little can it be doubted that such consciousness of self as is then revealed, requires to be afterwards supplemented by another prolonged course of mental evolution in the conceptual sphere, before those completed faculties of introspective thought are attained, which serve to difference the mind of a full-grown man from that of a babbling child almost as widely as the same interval of time is found to difference the body of an adult from that of a new-born babe. * * * * *