7-198;
his parallelism, 308-309;
references on mind-stuff, 309.
Common Sense: notions of mind and body, 106 ff.;
Reid's doctrine, 171-174;
common sense ethics, 236-240.
Common Thought: what it is, 18-20.
Concomitance: see Mind and Body.
Copernican System: 282.
Cornelius: on metaphysics, 249.
Creighton: 314.
Critical Empiricism: the doctrine, 218-219.
Critical Philosophy: outlined, 175-180;
criticised, 211-218;
references, 311.
Croesus: 1.

Democritus: doctrine referred to, 4;
his place in the history of philosophy, 5;
on the soul, 101-102;
his materialism examined, 194-195.
Descartes: conception of philosophy, 10;
on mind and body, 105-106; also, 119;
on animal automatism, 141-142;
on the external world, 163-168;
on substance, 198;
his rationalism, 206-209;
the "natural light," 208;
his attempt at a critical philosophy, 214;
his rules of method, 214;
provisional rules of life, 301-302;
reference given, 306;
reference to his automatism, 308;
references to the "Meditations," 312.
Determinism: 155-159; references, 309-310.
Dewey, John: 312-314.
Dogmatism: Kant's use of term, 211-212.
Dualism: what, 193;
varieties of, 202-204;
the present volume dualistic, 204;
Hamilton's, 312.

Eleatics: their doctrine, 4.
Empedocles: his doctrine, 4; a pluralist, 205.
Empiricism: the doctrine, 209-211;
Kant on, 212;
critical empiricism, 218-219.
Energy: conservation of, 151-154.
Epicureans: their view of philosophy, 7-8; their materialism, 102.
Epiphenomenon: the mind as, 162.
Epistemology: its place among the philosophical sciences, 247-249.
Ethics: and the mechanism of nature, 159-164;
common sense ethics, 236-240;
Whewell criticised, 238-240;
philosophy and, 240-242;
utility of, 265-267;
references, 315.
Evidence: in philosophy, 296-298.
Existence: of material things, 56-58; also, 165-192.
Experience: suggestions of the word, 58;
Hume's doctrine of what it yields, 170-171;
Descartes and Locke, 178;
Kant's view of, 179;
empiricism, 209-211;
critical empiricism, 218-219.
Experimental Psychology: its scope, 234-235.
Explanation: of relation of mind and body, 125-126.
External World: its existence, 32 ff.;
plain man's knowledge of, 32-36;
psychologist's attitude, 36-38;
the "telephone exchange," 3