—— absorption after evacuation, [iv. 2. 8. 2]. [ii. 2. 1. 3].

—— stops sweats, [iv. 2. 1. 2].

—— intoxicates, [ii. 2. 1. 1].

Oranges, their peel, [iv. 3. 3].

Orchis, [vii. 3. 3].

Oxygen gas, [ii. 2. 4]. [i. 2. 5]. [iii. 2. 11]. [iv. 1. 4].

—— produces and heals ulcers, [iv. 2. 7].

P.

Papin's digester, [i. 2. 3. 5].

Papaver somniferum, [ii. 3. 1]. [iv. 3. 2]. See Opium.