In The Call of the Wild, Jack London creates the character of Buck by using physical characteristics, mental characteristics, and descriptions of actions.
The author used physical characteristics to describe Buck as a large dog. In Chapter 1 we read that, "His father Elmo, a huge St. Bernard, had been Judge's inseparable companion, and Buck bid fair to follow in the way of his Father. He was not so large- he weighed only one hundred and forty pounds - for his mother, Shep, had been a Scotch shepard dog." We know from this description that Buck is a mix of two breeds of dogs and that he is a larger sized dog.
The author used physical characteristics to describe Buck as a large dog. In Chapter 1 we read that, "His father Elmo, a huge St. Bernard, had been Judge's inseparable companion, and Buck bid fair to follow in the way of his Father. He was not so large- he weighed only one hundred and forty pounds - for his mother, Shep, had been a Scotch shepard dog." We know from this description that Buck is a mix of two breeds of dogs and that he is a larger sized dog.