It is true that here and there were to be found a few scientists earnestly investigating and eagerly uncovering the hidden truths concerning the subjects. But the mass of the people were either entirely ignorant of the subject or else were intensely skeptical of anything concerning the matter, laughing to scorn the daring thinker who ventured to express his interest or belief in this great scientific phenomena. There are undoubtedly vibrations set up in the brain when one thinks, and there are undoubtedly waves of thought just as there are waves of electricity. Science informs us that there is an increase in temperature in the human brain during periods of thought activity, and also that there are constant chemical changes in the structure going on when the brain cells are active. This is akin to the generation of electricity in a battery, and undoubtedly acts in the same way producing vibrations, and transmitting them to the brain of another.