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Footnotes
This paper is published in greater detail in the Journal of Laryngology, Rhinology, and Otology for February 1920, as part of the Annual Reports of the Ear and Throat Department, Royal Infirmary, Edinburgh.





















This paper is published in greater detail in the Journal of Laryngology, Rhinology, and Otology for February 1920, as part of the Annual Reports of the Ear and Throat Department, Royal Infirmary, Edinburgh.