NAPIONE, Carlo Antonio Galeami (nah-pe-o'-nay), Brazilian soldier, born in Piedmont about 1750; died in Rio Janeiro in 1814. He entered the military service of his country, but being fond of natural science studied physics. When Sardinia was annexed by Napoleon, Napione, who had reached the rank of colonel, emigrated and accepted a place on the staff in Lisbon. He soon was appointed under-secretary of war, and was promoted afterward brigadier and general director of the arsenal, where he put in practice a new process of casting cannon which he had invented In 1807 he accompanied the prince regent to Brazil, and was appointed inspector-general of artillery and director of the arsenal, where he established a powder-factory and a cannon-foundry, and by his mineralogical knowledge discovered and began to work a mine of iron-ore. He explored a great part of the neighboring provinces for metal, and left interesting notes on mineralogy and metallurgy, which, after his death, were edited by order of the government by Colonel Pinto, under the title of "Tratado da mineralogia, corn referencia expressaos metaes uteis achados no Brazil "(Rio Janeiro, 1817).