Paper entitled 'Chemical and Oprical Properties at the Apollo 15 and 16 sites' Paper by T Gold, E Bilson adn R L Baron of the Center for Radiophysics and Space Research, Space Sciences Building, Cornell University, Ithaca, New York, and M Z Ali and W D Ehmann of the Department of Chemistry, University of Kentucky, Lexington, Kentucky Submitted for Proceedings, 8th Lunar Science Conference April 1977