—— prostration of strength in, [xii. 4. 1]. [xxxii. 3. 2].

—— cure of, [xii. 6. 1].

—— how cured by the bark, [xii. 3. 4].

—— cured by increased volition, [xii. 2. 4]. [xxxiv. 2. 8].

—— best quantity of stimulus in, [xii. 7. 8].

Fibres. See Muscles.

Fibres, their mobility, [xii. 1. 7]. [xii. 1. 1].

—— contractions of, [vi]. [xii. 1. 1].

—— four classes of their motions, [vi].

—— their motions distinguished from sensorial ones, [v. 3].