Arne Wilhelm Kaurin Tiseliusfor his research on electrophoresis and adsorption analysis, especially for his discoveries concerning the complex nature of the serum proteins
Patrick Maynard Stuart Blackettfor his development of the Wilson cloud chamber method, and his discoveries therewith in the fields of nuclear physics and cosmic radiation
Paul Hermann Müllerfor his discovery of the high efficiency of DDT as a contact poison against several arthropods