1. Editorial

   • M. K. Chandrashekaran

   Departments Pages: 1 - 2

2. Pittendrigh (1918–1996): In fond memory

   • M. K. Chandrashekaran

   Departments Pages: 3 - 7

3. Early days in the pittendrigh laboratory

   • Michael Menaker

   General Article Pages: 10 - 13

4. Colin pittendrigh: The lion in winter

   • Russell N. Van Gelder

   General Article Pages: 14 - 21

5. Reminiscences from Pittendrigh’s last PhD student

   • Carl Hirschie Johnson

   General Article Pages: 22 - 31

6. Pittendrigh: The darwinian clock-watcher

   • Vijay Kumar Sharma

   General Article Pages: 32 - 41

7. The 2005 nobel prize in physics: Optics

   • Vasant Natarajan
   • N. Mukunda

   General Article Pages: 42 - 57

8. Errata

   • Shailesh A. Shirali

   Erratum Pages: 57 - 57

9. Errata

   • David A. Huffman

   Erratum Pages: 57 - 57

10. Āryabhata and axial rotation of earth

    • Amartya Kumar Dutta

    General Article Pages: 58 - 72

11. Stereoscopic view of the sun and its activity in sight

    • B. N. Dwivedi

    Research News Pages: 73 - 78

12. And God said, “Let there be light”

    • G. S. Ranganath

    Book Review Pages: 79 - 80

13. Colin stephenson pittendrigh: A memoir

    • J. Woodland Hastings

    Personal Reflections Pages: 81 - 86

14. Refresher Course on Advanced Topics in Chemistry

    Departments Pages: 87 - 87

15. Kishore Vaigyanik Protsahan Yojana (KVPY) 2006

    Departments Pages: 88 - 89

16. Our readers write …

    • Senthil Kumar
    • Laxminarain
    • Dipanjan Ghosh

    Announcement Pages: 90 - 91