Between scientific dissemination and late-stage eugenics: ruptures and continuations in the intellectual trajectory of Salvador de Toledo Piza Jr., 1898-1988.

This article analyzes the ruptures from and continuations of eugenicist ideology in the work of Salvador de Toledo Piza Jr., a geneticist and professor at the Escola Superior de Agricultura "Luiz de Queiroz." Documentary research involving articles, correspondence, and notes from this former director of the Boletim de Eugenia investigates the reshaping of eugenics in the post-1945 context, a time when Piza Jr. began to publicize evolutionism. While Piza Jr. stopped publicly defending eugenics in latter half of the twentieth century, he maintained his racialized notions into the 1950s, corresponded with eugenicist groups in the 1960s, and supported a hierarchical interpretation of human evolution until the late 1980s.