Title: The Einstein Theory of Relativity, Author: Hendrik Antoon Lorentz
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Title: Mathematics for Quantum Mechanics: An Introductory Survey of Operators, Eigenvalues, and Linear Vector Spaces, Author: John David Jackson
Title: Two New Worlds: I. The Infra-World, II. The Supra-World:, Author: E. E. Fournier d'Albe
Title: The Living Cosmos: Evolution's Cyclical Phases:, Author: Gideon Flux