1. Multipole expansion of diatomic overlap

   • Othmar Steinhauser
   • Peter Schuster

   Original Investigations Pages: 157 - 164

2. Valence-bond studies of AH₂ molecules

   • Robert G. A. R. Maclagan
   • Gary W. Schnuelle

   Original Investigations Pages: 165 - 172

3. Bonding criteria for diatomic molecular orbitals and inter-relations among them

   • Yoram Tal
   • Jacob Katriel

   Original Investigations Pages: 173 - 181

4. Theoretical studies of atmospheric molecules: SCF and correlated energy levels for the NO₂, NO ₂ ⁺ and NO ₂ ⁻ systems

   • Patrick J. Fortune
   • Bruce J. Rosenberg
   • Arnold C. Wahl

   Original Investigations Pages: 183 - 189

5. Band structure of even and ions of odd polyenes

   • Nikolay Tyutyulkov
   • Ivo Kanev
   • Jürgen Fabian

   Original Investigations Pages: 191 - 203

6. An open-shell INDO study of models for the stabilized O⁻ ion in γ-irradiated alkaline ices

   • Andrew T. Pudzianowski
   • Robert N. Schwartz

   Original Investigations Pages: 205 - 221

7. A theoretical description of thetrans-cis conversion in the lowest excited states of diimide

   • Renzo Cimiraglia
   • Josep M. Riera
   • Jacopo Tomasi

   Original Investigations Pages: 223 - 235

8. Geometrical shapes of molecules by iterative extended Hückel method

   • Toshinobu Ukawa
   • Osamu Matsuoka

   Short Communication Pages: 237 - 240

9. Book review

   • C. J. Ballhausen

   BookReview Pages: 241 - 241

10. Announcement

    • Bernard Pullman

    Announcement Pages: 242 - 242