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Academy acid action activity Agriculture American Association animals annual antigen appointed Army award Biol biological biotin Brill's disease Bureau carbarsone catalase cells cent chairman Chem chemical chemist chemistry Chicago College Columbia University committee Company contributions Council courting flights diet digitalis director discussion disease Division effect elected endemic typhus engineering enzyme experimental fact factor field folic acid Harvard human important increase industrial infection Institute interest investigations Jour Journal laboratory lectures liver material mathematics Medal Medical School Medicine meeting ment metabolism method Museum National natural nitrogen nutrition obtained Office organic organic chemistry p-aminobenzoic acid physics plant present president problems production professor protein rats recent RECENT DEATHS reported scientific scientists serum Smithsonian Institution Building Society solution species sulfonamide synthetic rubber technical thiamin tion tissue United versity virus vitamin Washington York