The Rightly-Produced Voice Edward Davidson Palmer London, 1898. How to Train Children's Voices T. Maskell Hardy London, 1899. How to Sing (Meine Gesangskunst) Lilli Lehmann New York, 1902. Scientific Tone Production Mary Ingles James Boston, 1903. English Diction for Singers and Speakers Louis Arthur Russell Boston, 1905. The Training of Boys' Voices Clarke Ellsworth Johnson Boston, 1906. Voice Production in Singing and Speaking Wesley Mills, M.D. Philadelphia, 1906. The Art of the Singer W.J. Henderson New York, 1906. The Commonplaces of Vocal Art Louis Arthur Russell Boston, 1907. The Singing of the Future David Ffrangcon-Davies London, 1908. The Art of Singing and Vocal Declamation Sir Charles Santley London, 1908. INDEX ABDOMINAL BREATHING, employed by Martel, 4, 26; lateral, 3. (See also _Chest-abdominal breathing_ and _Lateral abdominal breathing_.) ACOUSTICS, 43; experiments in, 46-48; Pascal on, 49. ACTOR, enunciation of the, 19; importance of deep breathing for, 19. ADAM'S APPLE, the male larynx, 9. AGE to begin study of voice, 77. AH-sound, narrow limits of, 18; how produced, 22; Lilli Lehmann on, 19; place of, in practice, 57. AIR CAVITIES (see _Sinuses_). ANXIETY, a deterrent to beautiful singing, 85. APPLICATION OF ESSENTIALS, 79. APPUNN, on pitch of vowel sounds, 20. ARTICULATION, differing opinions concerning, 3; relation of, to resonance, 51; through upper lip, 72. (See also _Pronunciation_.) ARTICULATOR, 6. ARTISTRY, 79. ASCHAM, ROGER, on voice culture through imitation, 77. AW-sound, lip position for, 22; in exercises, 59, etc. BEAUTY OF TONE, a criterion of correct vocal action, 56. BELL, on pitch of vowel sounds, 20. BOOTH, EDWIN, as a good speaker, 16. BOOTH, JUNIUS BRUTUS, impairment of his voice, 53. BREATH CONTROL, 23-32; importance of, in both speaking and singing, 23; muscles of respiration in, 23; the diaphragm in, 23; muscles in, 24; the lungs in, 25; inspiration, 25; expiration, 25; correct method of, 25; a cure for nervousness, 27; necessity of exercises, 27; economy a factor in, 30; exaggerated, 30; initial use of, 31; exercises for, 33-37; of Farinelli, 37. BREATH FORCE, initial use of, 31; reserve, 31; wasted, 31. BREATH MASTERY, meaning of, 32.