Contents

15 November 1991
Vol 254, Issue 5034

About The Cover

The AAAS Annual Meeting is a unique collage of science—each year scientists from every discipline attend sessions to expand the scope of their research, extend their funding and collaborative networks, and let their minds travel to the far reaches of science. The cover illustrates the breadth of the scientific voyage offered at AAAS92 in Chicago from 6 to 11 February 1992. See page 1029 for a complete program and page 1046 for a key to the cover. [Collage by Diana DeFrancesco]