452 
Proceedings of Roycd Society of Edinburgh. [sess. 
suggested deserves a trial. The subject, however, is one for 
surgical consideration. 
Literature. 
Anton Steinhauser. — Phil . Mag., vol. vii. pp. 181, 261. 
Graham Bell. — American Journal of Otology , July 1880, p. 169. 
Mach. — Archives fur Ohrenheilkunde , 1874. 
Lord Rayleigh. — Transactions of the Musical Society , 1876. 
Kupper. — Archives fur Oh renheilkunde, vol, ii. pt. 3, p. 158. 
Prof. S. P. Thompson. — Phil , Mag. (5), vol. viii., 1879, p. 385; 
and Phil. Mag., June 1882. 
Bonnier.- — Paris Society of Otology , Laryngology , etc., April 6, 
1894. 
