pp 1-2 May 2001 Editorial

Editorial

Vijay Chandru

pp 3-5 May 2001 Article-in-a-Box

Friedrich August Kekulé – A Short Biographical Sketch

Gopalpur Nagendrappa

pp 6-7 May 2001 Table of Contents

Table of Contents

pp 8-15 May 2001 Series Article

The Study of Butterflies - Intra-specific Variation

Peter Smetacek

pp 16-28 May 2001 General Article

Time, Calendar and Millennium

E S Raja Gopal

pp 29-38 May 2001 General Article

Symmetry in the World of Man and Nature - Classification of Isometries

Shailesh A Shirali

pp 39-47 May 2001 General Article

Artificial Seeds and their Applications

G V S Saiprasad

pp 48-55 May 2001 General Article

The Tiny Terminators - Mosquitoes and Diseases

P K Sumodan

pp 56-65 May 2001 General Article

Voice-band Modems: A Device to Transmit Data Over Telephone Networks - Basic Principles of Data Transmission

V Umapathi Reddy

pp 66-73 May 2001 General Article

Flood Wave Propagation-The Saint Venant Equations

P P Mujumdar

pp 74-78 May 2001 General Article

Benzene and its Isomers - How many Structures can we Draw for C6H6?

Gopalpur Nagendrappa

pp 79-82 May 2001 Classroom

Which way does the Flame Point?

Jaywant H Arakeri

pp 83-91 May 2001 Classroom

Chromatography – An Educational Tool

Rekha Rajiv Vartak

pp 92-93 May 2001 Research News

Chemical Chaperones

M K Chattopadhyay

pp 94-96 May 2001 Book Review

Understanding Mathematics – A Review

Shashidhar Jagadeeshan

pp 97-98 May 2001 Information and Announcements

Guidelines for Authors

pp 100-100 May 2001 Featured Scientist

Friedrich August Kekule (1829-1896)