1. Critical level topology of energy hypersurfaces

   • Paul G. Mezey

   Original Investigations Pages: 97 - 110

2. Quantum chemical approach to electron transfer in molecular systems

   • Sven Larsson

   Original Investigations Pages: 111 - 125

3. A MINDO/3 MO study of oxidized flavins

   • Murray F. Teitell
   • Sung -Ho Suck
   • J. Lawrence Fox

   Original Investigations Pages: 127 - 141

4. Some theoretical remarks about semiempirical calculation of quadrupolar moments

   • Jose Eduardo Sanhueza

   Original Investigations Pages: 143 - 157

5. Ab initio calculation of the band structure of some boron polymers

   • David R. Armstrong

   Original Investigations Pages: 159 - 172

6. Molecular states of atoms. I. Orbital energy parameters

   • D. E. Parry

   Original Investigations Pages: 173 - 183

7. Studies of the energy spectrum of α, ω- substituted polymethine chains. II. Polymethine chains with odd number of methine groups

   • Nikolay Tyutyulkov
   • Fritz Dietz
   • Alia Tadjer

   Original Investigations Pages: 185 - 200

8. Erratum

   • Stephen Wilson

   Erratum Pages: 201 - 201