On Fabris's coloured prints for Hamilton's Campi phlegraei see B. Fothergill, Sir William Hamilton envoy extraordinary, New York 1969, pp. 138-143, and John Thackray, '"The modern Pliny": Hamilton and Vesuvius', in Ian Jenkins and Kim Sloan, Vases and volcanoes, London 1996, pp. 65-74
"N. 1 Cone of Vesuvius cover'd with snow, and the lava running in different streams from its crater. Vesuvius was in the same state in 1773: but it seldom happens that both mountains are cover'd with snow, as they were at the time above mention'd. … N.2 Mountain of Somma. N.3 High road from Naples to Portici. N.4 Old ruin'd towers near the sea."—Campi phlegraei, loc. cit.