To have a book upon your shelf by Linus Pauling is important. But i t is far mmo important to have a Pauling product which you can take from the shelf and use! This is such a teacher reference. Consider your last Chem I lecture/discussion on bonding and geometry where you described the bond angles in HzO, H A HzSe, and H2Te, and then asked students to predict the bond angles for NHj, pH3 and AsHs. And then one of your "bright lights" asks about the angle in PCls or OFz!Good discussion will, of course, lead to anestimate of the value; but where do you look for confirmation? Try Pauling. In this third edition of Pauling's discussion of structural chemistrv the hieh school teacher will find much such raw data, in-
of bonds. The boak provides a moderately detailed account of atomic energy levels, electron "spin", the determination and usefulness of electronegativity values, the Pauli exclusion principle, and dipole moments. Also contained are a laree number of enamules t o support the many
tetrahedra sharing corners). The section an the metdie band includes clear line diagrams which are helpful. Atomic arrangements in metallic crystals are considered in the usual manner and again much chemical data (e.g., interatomic distances. metallic radii. structure of sulfide minerals) is given. rlw n..r h:ls I LIIILIthe 11.11 IU:CIIII ,111J rcl ,111I n w m m ,r\., mend* ( 7 7 , . > t l t r IH& h.,
