pp 1-2 September 1997 Editorial

Editorial

N Mukunda

pp 3-3 September 1997 Science Smiles

Science Smiles

R K Laxman

pp 4-5 September 1997 Table of Contents

Table of Contents

pp 6-10 September 1997 Series Article

The Immune System and Bodily Defence How Does the Immune System Recognize Everything Under the Sun?

Vineeta Bal Satyajit Rath

pp 11-17 September 1997 Series Article

Know Your Personal Computer High-Level Operating Systems

Siddhartha Kumar Ghoshal

pp 18-26 September 1997 General Article

How to Stay Away from Each Other in a Spherical Universe Tammes' Problem

Bhaskar Bagchi

pp 27-31 September 1997 General Article

Sir R A Fisher and the Evolution of Genetics

Amitabh Joshi

pp 32-37 September 1997 General Article

Fisher's Contributions to Statistics

T Krishnan

pp 38-47 September 1997 General Article

Electricity Its Generation, Transmission and Distribution

D P Sen Gupta

pp 48-57 September 1997 Feature Article

What's New in Computers ? MMX Technology for Multimedia PCs

S Balakrishnan

pp 58-64 September 1997 Classroom

Polarization of Light - An Experimental Approach

Vilas Gohad

pp 65-68 September 1997 Classroom

The Isoperimetric Problem

Alladi Sitaram

pp 69-72 September 1997 Classroom

Addition of Bromine to Carbon-Carbon Double Bonds

M V Kulkarni

pp 73-74 September 1997 Think It Over

Think It Over

B S Rangaswamy A Krishna Murthy

pp 75-76 September 1997 Research News

Unruly Sun Emerges from Solar Space Observatory SOHO

B N Dwivedi

pp 77-78 September 1997 Book Review

Concepts in Biotechnology An Affordable Overview of Biotechnology Through Self Study and Open Learning Graduates

Narayan S Punekar

pp 79-81 September 1997 Book Review

Life of R. A Fisher

Anil P Gore

pp 81-82 September 1997 Book Review

Algebra, Volume-I.: Groups A Good Text Book on Group Theory for Post Graduates

K N Rajeswari

pp 83-90 September 1997 Reflections

The Determinants of the Scientific Revolution Early Thinking

Virendra Singh

pp 91-95 September 1997 Information and Announcements

TIFR - Workshop on Vertebrate Reproduction. Conference on Graph Connec-tions; Seminar on Science & Technology in Ancient India

Sunil Mukhi

pp 96-96 September 1997

Acknowledgements

pp 98-98 September 1997 Featured Scientist

Ronald Aylmer Fisher (1890-1962)