—— promotes absorption after evacuation, [xxxiii. 3. 1].

—— in increasing doses, [xii. 3. 1].

Organs of sense, [ii. 2. 5]. and [6].

Organs when destroyed cease to produce ideas, [iii. 4. 4].

Organic particles of Buffon, [xxxvii. 3]. [xxxix. 3. 3].

Organ-pipes, [xx. 7].

Oxygenation of the blood, [xxxviii].

P.

Pain from excess and defect of motion, [iv. 5]. [xii. 5. 3]. [xxxiv. 1]. [xxxv. 2. 1].

—— not felt during exertion, [xxxiv. 1. 2].