1. Some comments on the parameter choices for S.C.M.O. calculations on five membered heteroatomic π-electron systems

   • R. L. Flurry Jr.
   • J. J. Bell

   Commentationes Pages: 1 - 12

2. Criteria for bond orbitals and optimum hybrids

   • R. McWeeny
   • G. Del Re

   Commentationes Pages: 13 - 22

3. Torsion barriers of end-groups in cumulenes

   • Yuri A. Kruglyak
   • G. G. Dyadyusha

   Commentationes Pages: 23 - 32

4. Indices de liaison et isomérie de valence

   • G. Feler

   Commentationes Pages: 33 - 42

5. On the crystal structure of purine

   • B. Pullman
   • H. Berthod
   • J. Caillet

   Commentationes Pages: 43 - 46

6. Electronic structure and spectra of organic molecules

   • J. S. Kwiatkowski

   Commentationes Pages: 47 - 64

7. The variable core approach in the SCF MO calculation of heteroatomic systems

   • Kichisuke Nishimoto

   Commentationes Pages: 65 - 72

8. The electronic structure of angular polyphenes

   • R. M. Hedges
   • L. F. Phillips

   Commentationes Pages: 73 - 78

9. Anisotropy of diamagnetic susceptibility of alternant hydrocarbons

   • J. Nowakowski

   Commentationes Pages: 79 - 85

10. Aromatic hydrocarbon-carbonium ion molecular complexes

    • Martin Feldman
    • S. Winstein

    Relatio Pages: 86 - 89

11. Recensio

    • B. Pullman

    BookReview Pages: 90 - 90