Mach: 14. Mackenzie: 315. Malebranche: referred to, 142. Martineau: 315. Materialism: primitive man's notion of mind, 100-101; materialism in the Greek philosophy, 101-102; refutation of, 111-132; general account of, 194-197. Mathematics: nature of mathematical knowledge, 23-25; arithmetic compared with logic, 225-226; mathematical relations and cause and effect, 257; mathematical methods, 256-257. Matter: what is meant by material things, 51-58; the material world a mechanism, 147-150. "Matter" and "Form": see "Form" and "Matter." McCosh: on mind and body, 120. Mechanism: the material world a, 147-150; objections to the doctrine, 148-150; mind and mechanism, 151-154; mechanism and morals, 159-164; mechanism and teleology, reference, 310. Metaphysician: on the mind, 111 ff. Metaphysics: psychology and, 230-234; distinguished from philosophy, 244-245; uncertainty of, 247; utility of, 269-272; traditional divisions of, 315. Method: scientific method, 256-259. Middle Ages: view of philosophy in, 8-9. Mill, J. S.: the argument for other minds, 136-138; on permanent possibilities of sensation, 289; his logic, 314. Mind: the child's notion of, 100; regarded as breath, 101; suggestions of Latin, Greek, and Hebrew words for mind or soul, 101; materialistic views of, in Greek philosophy, 101-102; Plato and Aristotle on nature of, 102-103; doctrine of Plotinus, 103; of Cassiodorus, 103; of Augustine, 104; of Descartes, 105-106; modern common sense notions of mind, 106-110; mind as substance, Locke quoted, 108-109; psychologist's notion of, 110-111; what the mind is, 111-114; place of mind in nature, 151-154; minds active, 162-163; see also, Mind and Body, and Other Minds. Mind and Body: is the mind in the body, 115-117; plain man's notion of, 116; interactionism, 117-121; doctrine of Descartes and his successors, 119-120; plain man as interactionist, 120; McCosh quoted, 120-121; objection to interactionism, 121; parallelism, 121-126; its foundation in experience, 123-124; meaning of word "concomitance," 123-125; time and place of mental phenomena, 126-129; objections to parallelism, 129-132; Clifford's parallelism criticised, 130; mental phenomena and causality, 129; double sense of word "concomitance," 131-132; mind and the mechanism of the world, 151-154; mechanism and morals, 159-164; "concomitant phenomena" and attainment of ends, 162; references given on other minds and mind-stuff, 309; see also, Other Minds. Mind-stuff: see Other Minds. Minima Sensibilia: 87. Modern Philosophy: conception of philosophy in, 9-12. Monism: what, 193-194; varieties of, 194-202; narrower sense of word, 198-202. Moral Distinctions: their foundation, 159-164. Muirhead: 315.