北方人種
The German Jewish journalist Kurt Caro (1905–1979) who emigrated to Paris in 1933 and served in the British army from 1943, published a book under the pseudonym Manuel Humbert unmasking Hitler's "Mein Kampf" in which he stated the following racial composition of the Jewish population of Central Europe: 23.8% Lapponoid race, 21.5% Nordic race,