Text: Law of Atomic Pitch "Atoms have each a different and definite pitch, at which they naturally vibrate. Scholium: Atomic pitch is determined directly from its simple spectrum. Scholium: Atomic pitch is determined by computations from its associate spectrum with all other atoms, as in known spectra. Scholium: Atomic pitches are more important working data than atomic weights; tables of atomic pitches must be precise." (Keely)

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