Eel and Florrie both want to have a lasting impact on the world. How do they affect the world around them in ways that do not directly relate to their work with Dr. Snow?

Eel and Henry both go to school at the end of the novel, but Florrie gets a job instead. What does this conclusion suggest about the different forms of advancement that were available to boys and girls in Victorian England?

Analyze at least three different characters to judge how parents (and parental figures) are characterized and how they affect the actions of the protagonists.