H. C. Bunner,
Natural Selection — Part II
(1888)
“ Wykoff was gazing hopelessly at this monument of respectability when Mrs. Leete entered the room, red in the face from a hasty change of dress, and agitated by a nervousness the existence of which she would not have admitted to herself. Why does your thoroughbred collie bark at the tramp or the peddler within your gates, and greet shabbiest gentlehood with a friendly wag of the tail? It is because there is a difference in human beings, just as there is in dogs, and the dogs know it. ”
