left its imprint on the walls of time; and could we walk down their corridors and read the writings, we should be reading the race history. This should seem simple when we realize that the vibrations of the human voice can be preserved in the receptive phonographic disc, and reproduced at will. If we were to impress one of these discs with the vibration of some one's voice and lay it away for a million years, it would still reproduce those vibrations.
It is not hard then to understand how the walls of time may be hung with the pictures of human events and how one who sees these pictures may read the race history.
Telepathy, or thought-transference, is such a commonly known fact that it is useless to do other than to discuss it briefly. However, there are some facts which might be overlooked unless we give them careful attention. The main fact to emphasize is that mental telepathy would not be possible unless there were a medium through which it could operate. This medium is Universal Mind; and it is through this medium that all thought-transference or mental telepathy takes place. Forms in matter and solid bodies may begin and end in space, but thought is more fluent.
Telepathy is the act of reading subjective thought, or of receiving conscious thought without audible words being spoken. But there must be a mental tuning in, so to speak, just as there must be in radio. We are surrounded by all sorts of vibrations, and if we wish to catch any of them distinctly, we must tune in; but there is a great deal of interference, and we do not always get the messages clearly. We often get the wrong ones, and sometimes many of the vibrations come together and seem to be nothing but a lot of noises, without any particular reason for being. It is only when the instrument is properly adjusted to some individual vibration that a clear message may be received.
This is true of mental telepathy, which is the transmission of thought. The receiver must tune in with the sender. It does not follow, however, that the sender knows that he is