The disagreements between calculations of the benzene energy states by the method of antisymmetric molecular orbitals (A.S.M.O.) and by the augmented valence-bond theory given in previous papers ...

Dear Carolyn: I have a 5-year-old daughter in kindergarten, and I am just a wreck every time I see news about a school shooting. I know there are daily risks in life (getting in a car, etc.) but I am ...