Enrico Fermi foi um dos maiores físicos do século passado. Em 1934, fez uma série de palestras no Brasil. Convidado por Theodoro Ramos para trabalhar em São Paulo, preferiu trabalhar nos Estados Unidos a partir de 1938. No entanto, indicou Gleb Wataghin - a quem Cesar Lattes se referia como "pai" da Física brasileira - para vir em seu lugar. Wataghin fez história no Brasil, tornando-se um dos primeiros catedráticos da futura Universidade de São Paulo. Assim, Fermi, além de ser um nome importante para a História das Ciências, ao indicar Wataghin, acabou deixando indelével marca na criação e institucionalização da pesquisa científica nacional. Apesar disso, sabe-se muito pouco sobre a viagem de Fermi ao Brasil. Esse trabalho reconstitui da forma mais ampla possível os passos do famoso físico italiano em nossas terras.

Enrico Fermi was one of the greater physicists of the XX century. In 1934, he gave several lectures in Brazil. Invited by Theodoro Ramos to work in São Paulo, he preferred to stay in Rome and went to the USA in 1938. However, Fermi recommended Gleb Wataghin to come in his place. Wataghin made history in Brazil, becoming one of the first Professors of the future São Paulo University. Besides his relevance to the History of Science, Fermi eventually leaved an indelible mark on the creation and institutionalization of national scientific research due to the indication of Wataghin. Despite this fact, very little is known about Fermi's trip to Brazil. This work tries to reconstruct the fullest possible steps of the famous Italian physicist in our lands.

Atmospheric chemistry in Brazil from 1790 to 1853. Scarcely any mention is made today of investigations carried out in Brazil during the period above on the science of the atmosphere. Yet the study of these cases reveals much about the milieu of a few devoted men who laboured to pursue a scientific career. That such an arcane topic has been the concern of investigators at such an early date may come as a surprise to many. The subject was an oddity as a field of study anywhere at the time, and its history deserves the attention of present-day chemists.

Alexandre Vandelli was the heir of two illustrious scientific traditions in the Luso-Brazilian world of the late eighteenth and early nineteenth centuries, that of his father, the celebrated Italian-Portuguese naturalist and chemist Domingos (Domenico) Vandelli, and that of his father-in-law, that protean figure in several scientific specialties as well as in politics, José Bonifácio de Andrada e Silva, who in later life was of paramount importance in the process of Brazilian independence from Portugal. The younger Vandelli followed their footsteps but soon engaged in a multiple career, at first in Portugal and later in Brazil, of which little is known and is here presented for the first time.