The fact that Germans were not purely Nordic was indeed acknowledged by prominent Nazi racial theorist Hans F. K. Günther in his book "Rassenkunde des deutschen Volkes" (1922) ("Racial Science of the German People"), where Günther recognized Germans as being composed of five Aryan subtype races: Nordic, Mediterranean, Dinaric, Alpine, and East Baltic while asserting that the Nordics were the highest in a racial hierarchy of the five subtypes.