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Academy acid active Advancement Agriculture American American Chemical Society amount animals annual appears application assistant Association become biological body cells cent changes chemical chemistry College committee complete continue contributions Council course direct director discussion disease Division effect elected engineering experimental experiments fact field give given growth held human important increase indicate individual industrial Institute interest John laboratory less March material means Medical Medicine meeting ment method Michigan nature observed obtained organization original period physics plant possible preparation present president problems production professor received recent relation School scientific seems session Society solution species theory tion tissue United University various virus vitamins York