1. Editorial

   • Priti Shankar

   Departments Pages: 1 - 2

2. Saunders Mac Lane

   Departments Pages: 3 - 3

3. The challenge of fluid flow

   • Roddam Narasimha

   General/Article Pages: 6 - 22

4. Life at high temperatures

   • Ramesh Maheshwari

   General/Article Pages: 23 - 36

5. Foundation Course in Physics and Chemistry of the Earthsponsored by Indian Academy of Sciences, Bangalorein collaboration with University of Allahabad, Allahabad November 7–27, 2005

   Departments Pages: 36 - 36

6. Beginnings of group cohomology

   • R Sridharan

   General/Article Pages: 37 - 52

7. Spintronics

   • R Srinivasan

   General/Article Pages: 53 - 62

8. 100 years of Einstein’s theory of Brownian motion: from Pollen grains to protein trains—1

   • Debashish Chowdhury

   General/Article Pages: 63 - 78

9. An appreciation of free radical chemistry 6. Experiments involving free radicals

   • G Nagendrappa

   Departments Pages: 79 - 84

10. The early life of Albert Einstein: Seeking the mature Einstein in his youth

    • Kamal Datta

    Reflections Pages: 85 - 96