[46] Patent, No. 3183. Part of the specification together with a diagram is reproduced by Rockstro, op. cit. pp. 273-274.
[47] Patent, No. 3349. Part of the specification together with a diagram is reproduced by Rockstro, op. cit. pp. 273-274.
[48] Another specimen, almost the same, constructed about 1775, and called “Basse de Musette,” may be seen in the Museum of the Paris Conservatoire.
[49] See account of Capeller’s inventions by Carl Maria von Weber in Allgem. musikal. Zeit. (Leipzig, 1811), pp. 377-379, a translation of which is given by Rockstro, op. cit. pp. 279 and 280.
[50] See Über den Flötenbau und die neuesten Verbesserungen desselben (Mainz, 1847); and W.S. Broadwood, An Essay on the Construction of Flutes originally written by Theobald Boehm, published with the addition of Correspondence and other Documents (London, 1882).
[51] Examen critique de la flûte ordinaire comparée à la flûte Boehm (Paris, 1838).
[52] They existed long before, however, in the Chinese Ty and the Japanese Fuye.
[53] The reader may consult with advantage Mr C. Welch’s History of the Boehm Flute (London, 1883), wherein all the documents relating to this interesting discussion have been collected with great impartiality.
[54] For further details see Kathleen Schlesinger, The Instruments of the Orchestra, part i. pp. 192-194, where an illustration is given, and Paul Wetzger, Die Flöte (Heilbronn, 1906), pp. 23-24, and Tafel iv. No. 20.