 In 1925, in one of his Lowell lectures (published as Chapter VIII of Science and the Modern World), Whitehead made public a popular outline of his alternative to Bohr’s solar system view of material atoms, but he never published a more detailed and technical account of this alternative quantum theory (AQT). Whitehead called his AQT, ‘the theory of primates.’ In it, primates are not apes, of course, but standing (or stationary) electromagnetic waves (or vibrations). These waves are different from the traveling electromagnetic waves outside atoms. They are not light waves, but standing waves of charge density inside atoms, in fact, constituting atoms.