Discussion: “Early or Late Operation in Acute Mastoiditis.”

Politzer , “Diseases of the Ear”, 6th ed., trans. by Ballin M. J. , 1926, p. 497.

McKenzie , Proceedings, 1928, xxi, 616 (Sect. Otol., 16);

Journ. Laryng., 1928, xliii, 255.

Neumann , Zeitschr. f. Hals, Nasen, und Ohrenheilk., 1928, xx, 155.

Coates , Laryngoscope, 1930, v, 245.