[26] Fétis, Rapport sur la fabrication des instruments de musique à l’Exposition Universelle de Paris, en 1855.
[27] See Recueil de planches, vol. iv., and article “Basse de flûte traversière,” vol. ii. (Paris, 1751). See also The Flute, by R.S. Rockstro (London, 1890), p. 238, where the wood cut is reproduced together with a translation of the article. The Museum of the Conservatoire in Paris also possesses a bass flute by the noted French maker Delusse.
[28] Versuch einer Anweisung die Flöte traversière zu spielen (Berlin, 1752).
[29] Unless the contrary is stated, we have always in view, in describing the successive improvements of the flute, the treble flute in D, which is considered to be typical of the family.
[30] “Herrn Johann Joachim Quantzens-Lebenslauf, von ihm selbst entworfen,” in the Historisch-Kritische Beyträge zur Aufnahme der Musik, by Marpurg (Berlin, 1754), p. 239. Quantz was professor of the flute to Frederick the Great.
[31] See Johann Georg Tromlitz, Ausführlicher und gründlicher Unterricht die Flöte zu spielen (Leipzig, 1791), 1, § 7, and Über Flöten mit mehrern Klappen (Leipzig, 1800), cap. vii. § 21.
[32] Antonio Lorenzoni, Saggio per ben sonare il flauto traverso (Vicenza, 1779).
[33] See Anweisung, i. § 15.
[34] See Lebenslauf, loc. cit. p. 248, where Quantz states that he invented the adjustable head for the flute.
[35] See Anweisung, i. §§ 10-13 and iv. § 26.