Intercellular material, production of, [13], [18].

Internal ear, [360].

Intestinal juice, [152], [157].

Iris, [375].

Iron, [135].

Irritability, [6], [243], [304].

Isolation, [406].

Jejunum, [151].

Joints, [230]-[232], [242].

Kidneys, [201].
Blood supply to, [204].
Cortex of, [204].
Inflammation of, [211].
Pelvis of, [202].
Structure, [202].
Symptoms of diseased, [211].
Work of, [205].