Science Librarian Charles H. Smith recently spent several days at a Darwin conference in Brazil. He was invited by the conveners of the international ‘Echoes of Darwin’ symposium, the Institutos Humanitas UNISINOS (IHU), to present an evening session on the work of Alfred Russel Wallace, another evolutionist and colleague of Darwin’s. The IHU is a division of UNISINOS, a large Jesuit-founded university situated near the southern city of Porto Alegre in the Brazilian state of Rio Grande do Sul. Smith’s topic for the day was ‘Alfred Russel Wallace and the Notion of Final Causes in Evolution,’ and featured discussions of his research on both history of science and systems theory subjects. An interview of Smith conducted online prior to his arrival appeared in a UNISINOS magazine just before the conference, and while there he was interviewed again for another publication.