In the Grapes of Wrath, Steinbeck uses intercalary chapters to provide background for the various themes of the novel, as well to set the tone of the novel". The turtle is a metaphor for the working class farmers whose stories and struggles are recounted in The Grapes of Wrath. In Chapter 3, the turtle plods along dutifully, but is consistently confronted with danger and setbacks. Significantly, the dangers posed to the turtle are those of modernity …showed first 75 words of 348 total…

…showed last 75 words of 348 total…this. As the Joad family faces the same trials that the turtle faces, and as the desperate farmers have to deal with car dealerships, the intercalary chapters help to set the tone of, as well as integrate the various themes of The Grapes of Wrath. The intercalary chapters are a character of the Grapes of Wrath that makes the reading more interesting and enjoyable, by focusing our attention on the various themes of the novel