Excerpt from A Draught of the Blue: Together With an Essence of the Dusk Every tremor gravitation emits in any planet is immediately transmitted to the farthest limits of the system, in oscillations corresponding in their periods with the causes that produce them, like sympathetic notes in music, or vibrations from the deep tones of an organ. The human frame may be regarded as an elastic system, the different parts of which are capable of receiving the tremors of elastic media, and of vibrating in unison with their innumerable undulations

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