[40] Allbutt and Rolleston, Sys. of Med., 1905, vol. i, p. 1025.
[41] Metropol. Asylums Board’s Ann. Rep., Med. Supplem., 1904, p. 319.
[42] Diseases of the Nose and Throat, 1907, p. 726.
[43] For a description of this method see Metropol. Asylums Board’s Ann. Rep., Med. Supplem., 1898, p. 187.
[44] Operations of Surgery, 5th ed., vol. i, p. 640.
[45] Trans. Amer. Laryng. and Otol. Soc., 1907, p. 80, ‘The Treatment of Foreign Bodies in the Respiratory Tract and Esophagus.’
[46] Brit. Med. Journ., 1906, vol. ii, p. 357, ‘The Direct Examination of Œsophagus and Upper Air-passages.’
[47] C. A. Parker, Diseases of the Nose and Throat, London, 1906.
[48] Chevalier Jackson, Transactions American Laryngological Association, 1907.
[49] G. W. Crile, Journal Amer. Med. Assoc., June 17, 1905.