The correspondents are:
Mr Sadruddin, Carl Sagin, Shirley Sharma (St John's Military School), Professor Abdus Salam, Mr Samuelson, Suhrid Sarabhai, Babita Saxena, Arnold Schiebel, Dr Peter H Schiller, Dr Walter Schneider, Elie A Schneour, Surendr Jai (Science Age published by Nehru Centre), Stephen Hall (Science 84 magazine), Herbert Nagourney (Scientific DataLink), Office of Sea Grant (National Oceanic and Atmospheric Administration), Dr Ann Sefton, Dr Terry Sejnowski, Dr Peri Senapathy, Professor Anthony Serafini, William A Shack, Gary Shaw, Dr Robert Shapley, Victor E Shashoua, Dr Gordon Shaw, David Shaywitz, Bennett A Shaywitz, Jen-Chuan Shen, Professor Roger N Shepard, Dr Murray Sherman, Kurt E Shuler, Dr Charles Sibley, Dr G S Sidhu, Dr Phil Siekevitz, Rubert Siemerling, Dr Louis Siminovitch, John David Sinclair, Eric Wanner (Alfred P Sloan Foundation), Dr Lewis A Slotin, Harold W Smith, Dr A David Smith, Paul Smolensky, Henry M Sobell, J Spiess, Dr Alexander Spirin, Dr Larry R Squire, Henry Bradford Stanton, Dr Mircea Steriade, Peter Sterling, Hilton Stowell, Dr Steven Strogatz, Robert A Strother, Dr S C Strum, Professor Joel L Sussman, Professor Stuart Sutherland, Dr Magi Swain, Professor Neville Symonds, Michael Syvanen, and Victor Szmidt.