In chapter 16 how does jem explain the identities of mr. Dolphins Raymond's children? According to jem, what conflict do they face?

They notice Mr. Dolphus Raymond drinking liquor from a paper bag and sitting with the black people. Jem explains that he married a black woman and that he has "mixed" children. Jem says that these children are "sad" because they don't feel accepted by black people or by white people - though they can be accepted in the North. They see one of the mixed children and Scout thinks he looks black. She asks Jem how to determine whether someone is "mixed" or not and Jem says that you can't tell by looking, you have to know their history.