Text: "Atoms whose atomic pitches are in either unison, harmonic or concordant ratios, unite to form molecules. Corollary: When two atoms are indifferent, they may be made to unite by varying the pitch of either, or both. Scholium: This necessitates the construction of tables representing variation of atomic pitches by temperature, pressure, etc. Scholium: Tables of all harmonics and concords, and harmonics founded upon a normal harmonic scale, are equally essential. Scholium: Optical instruments may be made to measure pitches in energy." (Keely, pre1894)

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