Memorandum ácerca das expedições realizadas na Zambesia septentrional durante os annos de 1885 a 1891

This work details the expeditions conducted in Northern Zambesia from 1885 to 1891, focusing on the ivory trade and the interactions with local indigenous leaders. The author recounts his journey into the interior, establishing relationships with local rulers, particularly Mpesene, and navigating the challenges of securing permission for hunting and trade. The narrative highlights the political dynamics of the region, including the influence of drought on local populations and the author's efforts to expand Portuguese sovereignty through treaties and alliances. The text serves as a historical account of exploration, commerce, and colonial relations in late 19th-century Africa.