17 ([return])
[ Müller, zuverl. Nachr., I., p. 13.]

18 ([return])
[ Carpani, Le Haydine, p. 82. Kelly, Remin., I., p. 103.]

19 ([return])
[ It is mentioned only, so far as I am aware, by Biedenfeld. Die Komische Oper., p. 69.]

20 ([return])
[ Nicolai, Reise, IV., p. 574.]

21 ([return])
[ Sonnenfels, Ges. Schr., V., p. 296. He reappeared in Rome in 1780, a toothless old man. (Teutsch. Merc., 1789, III., p. 210.)]