This collection consists of one letter written from Rio de Janeiro, Brazil by N. Cairns to Hugh McCalmont of Belfast, Ireland concerning business conditions in Brazil, the effects of the suppression of slavery and the slave trade had in Brazil, and its effects on commerce.

Six letters sent by Richard Cumberland to his mother from Maranhao, Brazil. Cumberland, who was British, worked for a mining company that was operating in the jungle outside of Rodondo, a village in Maranhao. He writes about the living conditions, the climate, the pay, and the people he encountered.

Content warnings for derogatory language, mentions of racially motivated violence, drug use.