Man distinguished from brutes, [xi. 2. 3]. [xvi. 17].
Material world, [xiv. 1]. [xiv. 2. 5]. [xviii. 7].
Matter, penetrability of, [xiv. 2. 3].
—— purulent, [xxxiii. 2. 4].
Measles, [xxxiii. 2. 9].
Membranes, [xxvi. 2].
Memory defined, [ii. 2. 10]. [xv. 1. 7]. [xv. 3].
Menstruation by lunar periods, [xxxii. 6].
Miscarriage from fear, [xxxix. 6. 5].
Mobility of fibres, [xii. 1. 7].