inity: infinity and infinite divisibility of space, 73-80;
of time, 88-90; also, 95-97;
mathematics and, 226.
Inside: meaning of word, 55.
Interactionism: see Mind and Body.
Intuitionalists; defined, 240.
Ionian School: 3.

James, W.: on pragmatism, 220-222 and 312-313;
on psychology and metaphysics, 230-231;
on interactionism, reference, 308;
on "free-will," 309-310.
Jevons: his logic, 224; on study of scientific method, 256.
Jodl: 315.

Kant: on space, 75;
his critical philosophy, 175-180;
his philosophy criticised, 211-218;
references to, 307, 311.
Keynes: 314.

Localisation: of sensations, what, 127.
Locke, John: on doubt of external world, 32;
on substance, 108;
on perception of external world, 166-168;
his empiricism, 209-210;
his attempt at a critical philosophy, 215-216;
on innate moral principles, 240;
reference to "Essay," 310;
his hypothetical realism, 311;
treatment of substance, references, 312.
Logic; the traditional, 224;
"modern" logic, 224-225;
Jevons and Bosanquet referred to, 224-225;
philosophy and, 225-229;
compared with arithmetic, 225-227;
deeper problems of, 227;
Spencer cited, 228;
utility of, 264-265;
references, 314.
Lucretius: his materialistic psychology, 102.

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