Animals less liable to madness, [xxxiii. 1].
—— less liable to contagion, [xxxiii. 1].
—— how to teach, [xxii. 3. 2].
—— their similarity to each other, [xxxix. 4. 8].
—— their changes after nativity, [xxxix. 4. 8].
—— their changes before nativity, [xxxix. 4. 8].
—— less liable to contagious diseases, why, [xxxiii. 1. 5].
—— less liable to delirium and insanity, why, [xxxiii. 1. 5].
—— easier to preserve than to reproduce, [xxxvii].
—— food, distaste of, [xxviii. 1].