Abstract : Final summary report on calculations of nonlinear optical properties at Memphis State University. Finite-field methods for static values and TDHF methods for frequency dependent quantities are implemented. Results are summarized for polyene oligomers with emphasis on their behavior as the number of subunits is increased. The usefulness of a relationship for the calculation of one type of hyperpolarizability in terms on an other is demonstrated by example for the CH20 molecule. Other results on intermolecular effects on hyperpolarizabilities and vibrational contributions are also discussed. Nonlinear optical properties, Hyperpolarizabilities.