It is also notable for a "racialist" sensibility which is also detectable in some of his other work. A character says "We are a race of doers and fighters, of globe-encirclers and zone-conquerors.... All that the other races are not, the Anglo-Saxon, or Teuton if you please, is." (Such sentiments were common currency in Jack London's time and he places them in the mouths of characters, not the narrator).