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Scope/Content: In 1971, the CERN physicist and philosopher of physics John Bell wrote a paper concerning non-collapse theories of quantum mechanics, including sections on both David Bohm's theory and Hugh Everett's theory. The paper would be published much later, in revised form, as "Quantum Mechanics for Cosmologists" in Bell's collection of essays "Speakable and Unspeakable in Quantum Mechanics" (1987). Everett annotated (critically) the portions of the 1971 preprint that directly concerned his own theory. This document is the preprint, with Everett's handwritten marginalia. Scope/Content: This document was found in the basement of Mark Everett in 2007 by Mark Everett and Peter Byrne.