Another case illustrates a further and somewhat peculiar phase of the subject. From the posterior nasal passage of a singer I removed nine large adenoid tumors. He was a tenor, and within a few days his upper tones were perceptibly freer and fuller. He had recently changed his instructor; and subsequently I found that he was attributing to this teacher the marked improvement in his voice. The physician was receiving no credit as a voice-builder whatsoever from either of them--which shows that in addition to a keen knife, the specialist should also possess a keen sense of humor. Transcriber's Note Some spelling variation exists in this ebook (e.g., collar-bone and collarbone, chest-cavity and chest cavity, mucus and mucous). These variations have been retained to match the original text. Minor corrections to punctuation have been made without note. The following additional typographical corrections have been made: Table of Contents: Changed 170 to 169 to accurately reflect page number in text Page 75: Changed larynogoscopists to laryngoscopists (by amateur laryngoscopists)