The monograph contains precise description about the phenomenon of polymorhism and multiple molecules in organic crystals, a subject of immense interest to scientists working in the field of pharmaceuticals, crystal growth, X-ray crystallography and materials scientists, in general. A comprehensive review of literature has been made, covering polymorhic and structural properties of biphenyls. The lead author's research group has conducted crystallographic investigations separately on two different series of substituted biphenyl systems, during the past few years. A comparison of the...