Mr. Chairman, Ladies and Gentlemen.—I wish first of all to express my deep appreciation of the honor of being invited to address these two important Societies, namely, the Otological and the "Triolog," an honor which for me is considerably enhanced by the fact of platform association with Professor Magnus, to whom and to whose fundamental work on the labyrinth we all take off our hat. In his charming "Tanglewood Tales," Nathaniel Hawthorne has retold the story of Theseus, who, sailing from Athens to Crete, slew the Minotaur in the great adventure of the Labyrinth. In view of his mastery over the intricacies of the labyrinth of the ear, we might well acclaim Professor Magnus as our Theseus. You must have felt when you read the title of my particular address that you had come to a physiology department with a vengeance. If you want to see a