Soon after, he was invited by the Minister of Agriculture of the Second Empire to be the associate director of the section of anthropology, zoology and paleontology of the recently created National Museum of Natural History of Rio de Janeiro, by Emperor D. Pedro II.
João Gilberto | João Pessoa | João Bosco | Maria João | João Roque | Cyro Baptista | Maria Joao | João Goulart | João Cabral de Melo Neto | São João River | São João de Meriti | Joseph Baptista | João Vieira Pinto | João Sousa | Joao Roque | João Pinto | João Magueijo | João Havelange | João Botelho | Maria João Rodrigues | João Saldanha | João Reis | João Paulo de Oliveira | João N'Tyamba | João Maria Ferreira do Amaral II | João Gordo | João Gonçalves Filho | João de Deus | João de Castro | João Batista Vilanova Artigas |