1. Editorial

   • Amitabh Joshi

   Departments Pages: 1 - 1

2. Charles Babbage — A misunderstood genius

   • V. Rajaraman

   Departments Pages: 2 - 3

3. Glial cells: The other cells of the nervous system

   • Yasmin Khan
   • Medha S. Rajadhyaksha

   Series Article Pages: 6 - 13

4. On trace zero matrices

   • V. S. Sunder

   General Article Pages: 14 - 26

5. Introduction to web information retrieval: A user perspective

   • Srinath Srinivasa
   • P. C. P. Bhatt

   General Article Pages: 27 - 38

6. The modular construction of DNA double helix

   • Subramania Ranganathan
   • Anand Ranganathan

   General Article Pages: 39 - 44

7. How is nature asymmetric?

   • B. Ananthanarayan
   • J. Meeraa
   • Ritesh K. Singh

   General Article Pages: 45 - 52

8. Nature watch

   • Kartik Shanker

   Feature Article Pages: 53 - 66

9. Head-on collision of two balls revisited

   • Umapati Pattar
   • A. W. Joshi

   Departments Pages: 67 - 77

10. How Far apart are primes? Bertrand’s postulate

    • B. Sury

    Departments Pages: 77 - 87

11. Of the analytical engine

    • V. Rajaraman
    • Charles Babbage

    OriginalPaper Pages: 88 - 93

12. Information and announcements

    Departments Pages: 94 - 94