The late Guillemin wrote his thesis in physics under the same professor and at the same time as Werner Heisenberg and was a witness to the development of quantum physics by Heisenberg and others. He describes the scientific evolution of quantum mechanics, concentrating on the concepts rather than the personalities. He also discusses the implications of the then new ideas in physics with regard to issues of philosophy and metaphysics. This is a paperbound edition of a work first published in 1968. Annotation (c) Book News, Inc., Portland, OR (booknews.com)