The organ of the voice is contained in the larynx in the neck, which joins the head to the body. Just under the chin in front of the neck you can feel what is called the Adam’s Apple, which is the front of the larynx, or voice-box, by which the air coming out of the lungs is formed into sounds.

The sounds are formed into words by the mouth, tongue, and teeth.

PERMANENT TEETH AND THEIR NAMES

Upper Jaw: 1, 2, incisors; 3, canine; 4, 5, premolars; 6, 7, 8, molars.

Lower Jaw: 1, 2, incisors; 3, canine; 4, 5, premolars; 6, 7, 8, molars.

THE FIVE GATEWAYS OF KNOWLEDGE

These gateways—which we otherwise name the Organs of the Senses, and call in our mother speech, the Eye, the Ear, the Nose, the Mouth, and the Skin—are instruments by which we see, and hear, and smell, and taste, and touch: at once loopholes through which the soul gazes out upon the world, and the world gazes in upon the soul.

THE EAR: THE MARVELOUS ORGAN OF HEARING

The ear is divided into three parts: