—— animal, continue some time after their production, [xvii. 1. 3].
—— defined, a variation of figure, [iii. 1]. [xiv. 2. 2]. [xxxix. 8].
Mucus, experiments on, [xxvi. 1].
—— secretion of, [xxvi. 2].
Mules, [xxxix. 4. 5]. and [6]. [xxxix. 5. 2].
Mule plants, [xxxix. 2].
Muscæ volitantes, [xl. 2].
Muscles constitute an organ of sense, [xiv. 7]. [ii. 2. 4].
—— stimulated by extension, [xi. 1]. [xiv. 7].
—— contract by spirit of animation, [xii. 1. 1]. and [3].