In his biography Vita di mare he tells of his early career, at a time when sailing ships were only slowly being replaced by steam.
[2] Roncagli was the hydrographer for the Italian expedition to explore Patagonia and Tierra del Fuego of 1881–1882, led by Giacomo Bove.
[3] Decio Vinciguerra was officially both zoologist and botanist, but in fact Carlos Luigi Spegazzini from Buenos Aires handled the botanical work.
[3] Giovanni Roncagli became a navy captain, an expert in commercial geography and a member of the Italian Naval League.
[1] He was a pioneer in aeronautical topography in Italy, which quickly turned out to be of great importance in World War I.