Science: v.1-v.219

acid activity addition American analysis animals appears applications Association biological cells changes chromatography complete concentration containing continuous Department designed determined effect electron energy ethylene experiments fact field function given growth Illus increase indicate Institute interest International laboratory less light material means measured mechanism Medical meeting ment methods Michigan minutes Model natural normal observed obtained occur operation organic percent period Physics position possible potential present Press problems produced range recent records References relative response sample Science scientific scientists similar solution standard stimulation structure studies Table temperature theory tion tissue units Univ University York