If you cannot measure it, it probably does not exist to many scientists, and this volume in the series sets out to prove that measurements at the far ranges do exist. This reprint of the Academic Press edition is unabridged and is slightly corrected, giving overviews of geometric units and threshold and error units, geometrical representations, including vector and metric representations, axiomatic geometry and applications, including affine and absolute spaces, proximity measurement, including multidimensional representations, color and force measurement, including Grassmann structures and proofs, representations with thresholds, including ordinal theory and semi-ordered additive structures and representations of choice probabilities, including ordinal representations for pair comparisons and random variable representations. Annotation 2007 Book News, Inc., Portland, OR (booknews.com)