The Faculty of Thought--Emotion and Thought--Instinct and Reason--Monkeys Reason--Some Examples 156 CHAPTER XVII. Speech Defined--The True Nature of Speech--The Use of Speech--The Limitations of Speech 169 CHAPTER XVIII. The Motives of Speech--Expression--The Beginning of Human Speech--The Present Condition of Speech 177 CHAPTER XIX. Language embraces Speech--Speech, Words, Grammar, and Rhetoric 183 CHAPTER XX. Life and Consciousness--Consciousness and Emotion--Emotion and Thought--Thought and Expression--Expression and Speech--The Vocal Organs and Sound--Speech in City and Country--Music, Passions, and Taste--Life and Reason 190 CHAPTER XXI. Certain Marks which Characterise the Sounds of Monkeys as Speech--Sounds Accompanied by Gestures--Certain Acts follow certain Sounds--They acquire new Sounds--Their Speech addressed to certain Individuals--Deliberation and Premeditation--They remember and anticipate Results--Thought and Reason 200 CHAPTER XXII. The Phonograph as an Aid to Science--Vowels the Basis of Phonation--Consonants Developed from a Vowel Basis--Vowels are Compound--The Analysis of Vowels by the Phonograph--Current Theories of Sound--Augmentation of Sounds--Sound Waves and Sound Units--Consonants among the Lower Races 208 CHAPTER XXIII. The Human Voice--Human Bagpipe--Human Piccolo, Flute, and Fife--The Voice as a Whistle--Music and Noise--Dr. Bell and his "Visible Speech" 219 CHAPTER XXIV. Some Curious Facts in Vocal Growth--Children and Consonants--Single, Double, and Treble Consonants--Sounds of Birds--Fishes and their Language--Insects and their Language 224 CHAPTER XXV. Facts and Fancies of Speech--Language in the Vegetable Kingdom--Language in the Mineral Kingdom 237 CHAPTER XXVI. THE SPEECH AND REASON OF DOMESTIC ANIMALS. Dash and the Baby--Two Collies talk--Eunice understands her Mistress--Two Dogs and the Phonograph--A Canine Family--Cats and Dogs--Insects--Signs and Sounds 246 * * * * * THE SPEECH OF MONKEYS CHAPTER I.