De Lacerda, an accomplished astronomer, was appointed to command a scientific expedition of discovery to the north of the Zambesi.
Lacerda left a valuable record of his adventurous journey; but with Mungo Park and Lacerda the history of African exploration in the 18th century closes.
Joao Barbosa Rodrigues has done some good work in botany, especially in the study of the palms of the Amazon, and Joao Baptista de Lacerda has made important biological investigations at the national museum of Rio de Janeiro.
Traveller, Francisco de Lacerda, in 1798, Bangweulu was first reached in 1868 by David Livingstone, who died six years later among the swamps to the south.
It suffices to mention Soror Violente do Ceo, an exalted mystic called " the tenth muse," Bernarda Ferreira de Lacerda, author of the Soledades de Bussaco, the Laura do Anfrizo of Manoel Tagarro, the Sylvia de Lizardo of Frei Bernardo de Brito, and the poems of Frei Agostinho das Chagas, who, however, is better represented by his Cartas espirituaes.