The law of club and fang refers to the primitive law of nature that reigns in the Northland, which rules according to the necessities of survival in reference to both dog's relation to man and to other dogs. ... Through powerful blows the man in the red sweater's club teaches dogs, like Buck, to obey their masters
The text suggests that the cause behind the continued expansion of education in the early twentieth century is the efforts of the Progressive Movement that demanded reforms to the education system. This allowed the growth of educational institutions and the number of children that attended school in the United States.
