acht ind: no-vomiting, and no-complaint of difficulty in walkingi6r of giddiness.On examination the pupils were found to be unequal in size, the right being larger than the left; the right pupil reacted ,briskly to light and apcoinmodation; the left pupil was Gon- tracted, slightly irreqular in shape, and reacted only very sluggishly to light.there was no nystagmus and no ocular paralysis.The fundi were normal.With the exception of the deafness the functions of the other cranial nerves were not disturbed in any way.There was practically complete bilateral nerve deafness.He was examined by Mr. Muecke, who considered that the nerve conduction from the labyrinth was almost completely blocked on both sides, more so on
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P. Lockhart-Mummery (1920) studied this question.