It would be a gross exaggeration to say, on the basis of the evidence at our disposal, that all life’s experiences persist as potential memories, or even that this is true of the greater number. It is, however, undoubtedly true that of the great mass of experiences which have passed out of all voluntary recollection, an almost incredible, even if relatively small, number still lie dormant, and, under favoring conditions, many can be brought within the field of conscious memory. The significance of this fact will become apparent to us later after we have studied the nature of conservation. Still more significant, particularly for abnormal psychology, is the fact we have brought out by our technical methods of investigation; namely, that almost any conserved experience under certain conditions can function as a subconscious memory and become translated into, i.e., produce sensory and motor automatic phenomena, such as hallucinations, writing, speech, etc. It will not be surprising if we shall find that various other disturbances of mind and body are produced by such subconscious processes. Two striking facts brought out by some of these investigations are the minuteness of the details with which forgotten experiences may be conserved and the long periods of time during which conservation may persist. Thus, as we have seen, experiences dating back to early childhood may be shown to be preserved in extremely minute detail though the individual has long forgotten them. Furthermore, it has been shown that even remembered experiences may be conserved in far more elaborate detail than would appear from so much of the experience as can be voluntarily recalled. Probably our voluntary memory is not absolutely perfect for any experience in all its details but the details that are conserved often far exceed those that can be recalled. In the survey of life’s experiences which we have studied we have, for the most part, considered those which have had objective relation and have been subject to confirmation by collateral testimony. But we should not overlook the fact that among mental experiences are those of the inner as well as outer life. To the former belong the hopes and aspirations, the regrets, the fears, the doubts, the self-communings and wrestlings with self, the wishes, the loves, the hates, all that we are not willing to give out to the world, and all that we would forget and would strive not to admit to ourselves. All this inner life belongs to our experience and is subject to the same law of conservation.