1. Editorial

   • N. Mukunda

   Departments Pages: 1 - 2

2. The immune system and bodily defence

   • Vineeta Bal
   • Satyajit Rath

   Series Article Pages: 6 - 10

3. Know your personal computer

   • S. K. Ghoshal

   Series Article Pages: 11 - 17

4. How to stay away from each other in a spherical universe

   • Bhaskar Bagchi

   General Article Pages: 18 - 26

5. Sir R A Fisher and the evolution of genetics

   • Amitabh Joshi

   General Article Pages: 27 - 31

6. Fisher’s contributions to statistics

   • T. Krishnan

   General Article Pages: 32 - 37

7. Electricity

   • D. P. Sen Gupta

   General Article Pages: 38 - 47

8. What’s new in computers

   • S. Balakrishnan

   Feature Article Pages: 48 - 57

9. Polarization of light — An experimental approach

   • Vilas Gohad

   Departments Pages: 58 - 64

10. The isoperimetric problem

    • Alladi Sitaram

    Departments Pages: 65 - 68

11. Addition of bromine to carbon-carbon double bonds

    • M. V. Kulkarni

    Departments Pages: 69 - 72

12. Think it over

    • B. S. Rangaswamy
    • A. Krishna Murthy

    Departments Pages: 73 - 74

13. Unruly sun emerges from solar space observatory SOHO

    • B. N. Dwivedi

    Rsearch News Pages: 75 - 76

14. Book review

    • Narayan S. Punekar
    • A. P. Gore
    • K. N. Rajeswari

    BookReview Pages: 77 - 82

15. The determinants of the scientific revolution

    • Virendra Singh

    Reflections Pages: 83 - 90

16. The Tata Institute of Fundamental Research

    • Sunil Mukhi

    Information and Announcements Pages: 91 - 94

17. Workshop on Vertebrate Reproduction

    Information and Announcements Pages: 95 - 95

18. Conference on Graph Connections

    Information and Announcements Pages: 95 - 95

19. Science and technology in Ancient India

    Information and Announcements Pages: 95 - 95

20. Acknowledgements

    Acknowledgments Pages: 96 - 96