Abstract
Morton states that late congenital syphilitic nerve deafness is in all likelihood due to labyrinthitis, although some believe it is caused by degeneration of the 8th nerve or of midbrain nuclei. Five patients treated with Roniacol, the alcohol of nicotinic acid, are presented. Audiograms were not performed and the results of treatment are far from impressive. Nonetheless, the author suggests further trial of this method of treatment.

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