Science: v.1-v.219

acid activity addition American analysis animals appears applications associated atoms biological calculated carbon cells chairman changes chemical Chemistry chromosomes complete concentration containing Department determined discussion distribution effect electron energy evidence experiments field function given human important increase indicated Institute interest known laboratory lead less limited material mean measurements mechanism ment method Michigan nature normal observed obtained occur organic percent phase Physics population position possible present Press problems protein range rats reaction recent recorded References relative reported response rocks samples Science scientific Service similar specific structure studies suggested surface Table temperature tion tissue United University volume write York