CHAPTER X.
QUESTION OF UNITY OR PLURALITY OF RACES.
Systems of Camper, Blumenbach, Morton, Carus--Investigations of Owen, Vrolik, Weber--Prolificness of hybrids, the great scientific stronghold of the advocates of unity of species 312
QUESTION OF UNITY OR PLURALITY OF RACES.
Systems of Camper, Blumenbach, Morton, Carus--Investigations of Owen, Vrolik, Weber--Prolificness of hybrids, the great scientific stronghold of the advocates of unity of species 312