Named in honor of Professor Linus Pauling on the occasion of his ninetieth birthday, 1991 Feb. 28. Pauling has had a long and distinguished career, spending 37 years as a Caltech faculty member, including 22 years as chairman of Caltech’s Division of Chemistry and Chemical Engineering. He is the recipient of Nobel prizes for both Chemistry {1954} and Peace {1962}. The discoverer, and her husband Ronald, a Caltech graduate, are long time admirers of Pauling. (M 17981) _ _.