Originally published in 1971, this work by the late Eisenbud (then of the department of physics at the State U. of New York in Stony Brook) aimed to provide a conceptual understanding of the foundations of quantum physics by downplaying formal mathematical calculations in favor of investigation of physical meanings. Over the course of nine chapters, he analyzed the physical meaning and conceptual consequences of the Heisenberg principle, paying particular attention to the incompatibility of pairs of observables. He also explored the effects of the concept of incompatibility on the meanings of "measurement," "property," "state," and "indeterminism." He discussed the existence and significance of probability amplitudes. As mentioned above, the work is only intended to provide foundations and should not be considered an introduction to quantum physical theory itself. Annotation ©2007 Book News, Inc., Portland, OR (booknews.com)