PEOPLE AWARDS DEATHS OPPORTUNITIES ETCETERA MEETINGS NEW PUBLICATIONS Clayton F. Caills, director-at-large of the American Chemical Society board, has been elected ACS president for 1989. Callis retired from his position as director of environmental operations for Monsanto Fibers & Intermediates Co. in 1985, and became vice president of Chelan Associates, an environmental consulting firm in St. Louis. Ernest L. Ellel, ACS board chairman and WR. Kenan Professor of Chemistry at the Univers