Machine derived contents note: Theories in Conflict. -- The Symmetry of the Water Molecule. -- The Electronic Structure of the Water Molecule. -- The D2h Character Table and the Electronic Structures of Ethene and Diborane. -- The Electronic Structure of Bromine Pentafluoride, BrF5. -- The Electronic Structure of the Ammonia Molecule. -- The Electronic Structures of Some Cubic Molecules. -- Groups and Subgroups. -- Molecular Vibrations. -- Direct Products. -- -Electron Systems. -- Space Groups. -- Spectroscopic Studies of Crystals. -- Appendices. -- Further Reading. -- Index