Scientist Quotes and aphorisms about substances Karl Landsteiner Otto Heinrich Warburg Otto Wallach ,, It has been possible to trace historically back to a very early age the taxes which were imposed on... Otto Wallach ,, In bitter almond oil, like in a great number of other substances that previously had been counted a... Otto Wallach Otto Wallach Renato Dulbecco Philippe Cousteau, Jr. John Vane Bernardo Houssay