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The Russell Periodic Chart of Atomic Weights, Electro-Magnetic Charge, Gravitation, Radiation, Sex, Temperature, Electric and Magnetic Pressures, Valence, Ionization and other Periodicities
periodic table
nemfrog
The Logic of Crystals – William T. Astbury & Kathleen Yardley’s Space-group Diagrams
230 Space-Groups - William T. Astbury & Kathleen Yardley