—— voluntary ones dissevered in sleep, [xvii. 1. 12]. [xvii. 3. 7].

Cathartics, external, their operation, [xxix. 7. 6].

Causation, animal, defined, [ii. 2. 11]. [iv. 7].

Cause of causes, [xxxix. 4. 8].

Causes inert and efficient, [xxxix. 8. 2].

—— active and passive, [xxxix. 8. 3].

—— proximate and remote, [xxxix. 8. 4].

Chick in the egg, oxygenation of, [xxxviii. 2].

Child riding on a stick, [xxxiv. 2. 6].

Chilness after meals, [xxi. 3]. [xxxv. 1. 1].