* SCIENCE Is published weedy on Frdey, except the wee In Decenber, and with an extra Ioue In February by the Amarican Aa for th Aof Scbnce, 1333 H Street, NW, WahIngton, DC 20005. Second-class poatage (publicaton No. 484480) paid at Washington, DC, and at an additional entry. Now combined with The Scientific Monthly@ Copyright 1988 by the American Association for the Advancement of Science. The...