Note 111 — Chapter XIV · PROOF OF THE INTELLECTUAL INEQUALITY OF RACES (continued). DIFFERENT CIVILIZATIONS ARE MUTUALLY REPULSIVE. HYBRID RACES HAVE EQUALLY HYBRID CIVILIZATIONS

I have no hesitation in regarding the exaggerated development of instinct among savage races as a specific mark of intellectual inferiority. The sharpening of certain senses can only be gained by the deterioration of the mental facilities. On this point, compare what Lesson says of the Papuans, in a paper printed in the Annales des sciences naturelles, vol. x.