The Concept of Nature (Tarner Lectures, 1920) — Alfred North Whitehead

Coherence, 29

Comparison, 124, 125, 143, 189

Complex, 13

Conceptual nature, 45; space, 96

Concrete facts, 167, 171, 189

Conditioning events, 152

Conditions, active, 158

Congruence, 65, 96, 118, 120, 127, 196

Continuity, 157; Dedekindian, 102; of events, 76; of nature, 59, 76

Convention, 121

Convergence, 62, 79; law of, 82

Conveyance, 154, 155

Co-present, 177

Covering, 83

Creative advance, 178

Critical velocity, 193, 195

Curvature of space- time, 182

Cyclone, 194

Dedekindian continuity, 102
Definite, 53, 194, 198
Delusions, 31, 38
Delusive perceptual object, 153
Demarcation of events, 144
Demonstrative phrase, 6
Descriptive phrase, 6, 10
Differential equations, 196
Discrimination, 14, 50, 144
Diversification of nature, 15
Duddington, Mrs, 47
Duration, 37, 53, 55, 186
Durations, families of, 59, 73, 190
Dynamical axes, 138

Einstein, vii, 102, 131, 164, 165,

i8i, 182, 183, 184, 191
Electromagnetic field, 179
Electron, 30, 146, 158, 171
Element, 17; abstractive, 84
Elliptical phraseology, 7

liMJJlA

Empty space, 145

Entity, 5, 13

Equal in abstractive force, 83

Error, 68

Ether, 18, 78, 160; material, 78; of events, 78

Euclid, 85, 94, 197

Euler, 140

Event, 15, 52, 75, 165; percipient, 107, 152, 186

Event-particle, 86, 93, 94, 172, 191

Events, conditioning, 152; con-
tinuity of, 76; demarcation of,
144; ether of, 78; infinite, 197,
198; limited, 74; passage of, 34;
signified, 52; stationary, 198;
stream of, 167; structure of, 52,

Exclusion, 186

Explanation, 97, 141

Extended nature, 196

Extension, 22, 58, 75, 185

Extensive abstraction, 65, 79, 85

Extrinsic character, 82, 89, 90, 113, 191; properties, 62

Fact, 12, 13

Factors, 12, 13, 15

Facts, concrete, 167, 171

Family of durations, 59, 63, 73; of

moments, 63
Faraday, 146
Field, gravitational, 197; of activity,

170, 181; physical, 190
Finite truths, 12
Fitzgerald, 133

Formula of calculation, 45, 158
Foucault, 138, 194
Four-dimensional manifold, 86
Fresnel, 133
Future, the, 72, 177

Galileo, 139

Geometrical order, 194

Geometry, 36; metrical, 129

Gravitation, 179 et seqq.

Gravitational field, 197

Greek philosophy, 16; thought, 197

Gyro-compass, 194

Heath, Sir T. L., 197 Here, 107

Idealists, 70

Immediacy, 52; of perception, 72

Impetus, 181, 182; coefficients of,

183; integral, 183
Inclusion, 186
Individuality, 13

Infinite events, 197, 198

Inge, Dr, 48

Ingredient, 14

Ingression, 144, 145, 148, 152

Inherence, 83

Inside, 106

Instant, 33, 35, 57

Instantaneous plane, 91 ; present, 72 ;

spaces, 86, 90, 177
Instantaneousness, 56, 57
Intersection, locus of, 90
Intrinsic character, 80, 82, 90, 113,

191; properties, 62
Ionian thinkers, 19
Irrelevance, infinitude of, 12
Irrevocableness, 35, 37
It, 8

Julius Caesar, 36 Junction, 76, loi

Kinetic energy, 105; symmetry, 129 Knowledge, 28, 32

Lagrange, 140

Larmor, 131

Law of convergence, 82

Laws of motion, 137, 139; of nature,

Leibnizian monadology, 150
Level, 91, 92
Light, 195; ray of, 188; velocity of,

Limit, 57

Limited events, 74
Location, 160, 161
Locke, 27

Locus, 102; of intersection, 90 London, 97

Lorentz, H. A., 131, 133 Lossky, 47

Manifold, four-dimensional, 86;

space-time, 173
Material ether, 78; object, 169
Materialism, 43, 70
Matrix, 116

Matter, 16, 17, 19, 20, 26
Maxwell, 131, 133
Measurableness, 196; of nature, 193
Measurement, 96, 120, 174, 196; of

time, 65, 140
Measure-system, 196
Memory, 68
Metaphysics, 28, 32
Metrical geometry, 129
Michelson-Morley, 195
Milton, 35
Mind, 27, 28

Index

Minkowski, viii, 131

Molecule, 32, 171

Moment, 57, 60, 88

Momenta! area, 103; route, 103

Momentum, 105

Motion, 105, 114, 117, 127, 188, 192

Multiplicity, 22

Natural philosophy, 29, 30
Natural science, philosophy of, 46
Nature, 3; apparent, 31, 39; causal,

31, 39; conceptual, 45; continuity

of, 59, 76; discrimination of, 144;

extended, 196; laws of, 196;

passage of, 54; stratification of,

194, 196; system of, 146 Newton, 27, 136, 139, 140

Object, 77, 125, 143, 169, 189;
delusive perceptual, 155 ; material,
169; perceptual, 153; physical,
155. 157; scientific, 158, 169; uni-
form, 162

Occupation, 22, 34, 36, 100, loi

Order, source of, 192; spatial, 95, 194; temporal, 64, 95, 194

Organisation of thought, 79

Outside, 63, 100

Paradox, 192

Parallel, 63, 127; durations, 190

Parallelism, 95, 191

Parallslogram, 127

Paris, 87, 138

Parliament, 120

Part, 14, 15, 58

Passage of events, 34 ; of nature, 54

Past, the, 72, 177

Perception, 3

Perceptual objects, 149, 153

Percipience, 28

Percipient event, 107, 152, 186, 187

Period of time, 51

Permanence, 144

Perpendicularity, 117, 127, 193

Philosophy, i; natural, 29, 30; of

natural science, 46 ; of the sciences,

Physical field, 190; object, 155, 156,

Physics, speculative, 30

Place, 51

Plane, 191; instantaneous, 91

Plato, 16, 17, 18, 24, 197

Poincare, 121, 122, 123

Point, 35, 89,^91, 114, 173. 176

Point-flash, 172, 173

Point of space, 85

Point, timeless, 192

Point-track, 113, 198

Pompey, 36

Position, 89, 90, 92, 93, 99, 113, 191; absolute, 105, 106, 114, 188

Potential, 183; associate-, 183

Predicate, 18

Predication, 18

Present, the, 69, 72, 177; instan- taneous, 72; observational, i85

Primary qualities, 27

Prime, 88

Process, 53, 54; of nature, 54

Psychic additions, 29, 187

Punct, 92, 93, 94

Pythagoreans, 197

Quality, 27
Quantum of time, 162
Quantum theory, 162

Ray of light, 188

ReaUty, 30; of durations, 55, 187

Recognition, 124, 143, 189

Rect, 91, 92

Recurrence, 35

Relative motion, 117; velocity, 130

Relativity, 169; restricted theory

of, 193
Rest, 105, 114, 188, 192
Rotation, 138, 194
Route, 99; momental, 103; straight,

Russell, Bertrand, 11, 122, 123

Schelhng, 47

Science, 2; metaphysical, 32
Scientific objects, 149, 158, 169
Secondary qualities, 27
Self-congruence, 196
Self-containedness of nature, 4
Sense-awareness, 3, 67
Sense-object, 149, 170
Sense-perception, 3, 14
Sense-recognition, 143, 189
Series, temporal, 66, 70, 85, 178
Set, abstractive, 61, 79
Significance, 51, 186, 187, 188, 194,

197, 198
Signified events, 52
SimpUcity, 163, 173
Simultaneity, 53, 56, 196
Situation, 15, 78, 147, 148, 152, 160,

Solid, 99, loi, 102; vagrant, 101
Sound, 195
Space, 16, 17, 31.33. 79; empty, 145;

timeless, 86, 106, 114; uniformity

of, 194 Spaces, instantaneous, 86, 90

liN L»r<A

Space-system, 179
Space-time manifold, 173
Spatial-order, 95
Spatio-temporal structure, 173
Speculative demonstration, 6
Speculative physics, 30
Standpoint for perception, 107, 188
Station, 103, 104, 113
Stationary events, 19S
Straight line, 91, 114, 191; route,

Stratification of nature, 187, 194,

Stream of events, 167
Structure of events, 52, 166
Structure, spatio-temporal, 173
Subject, 18

Substance, 16, 18, 19, 150
Substratum, 16, 18, 21
Symmetry, 118, 126; kinetic, 129
System of nature, 146
System, time-, 192

Tamer, Edward, v, r

Temporal order, 64, 95, 194

Temporal series, 56, 70, 85

Tensor, 182

Terminus, 4

The, II

Theory, quantum, 162

There, no, 189

This, II

Thought, 3, 14

Timaeus, the, 17, 20, 24

Time, 16, 17, 31. 33. 49, 79;

measurement of, 140; quantum of,

162; transcendence of, 39 Time-series, 178, also cf. Temporal

series Time-system, see Time-series, also

91, 97, 104, 179, 192 Timeless point, 192; space, 86, 106,

114. 177 Totality, 89

Transcendence of time, 39 Transmission, 26, 28; action by, 159,

Tubes of force, 146

Unexhaustiveness, 50
Uniform object, 162
Uniformity of change, 140; of space,

Vagrant area, 103 ; solid, loi

Veblen and Young, 36

Velocity, critical, 193, I95; of light,

131, 195; relative, 130 Volume, 92, loi

When, 107
Where, 107
Whole, 58
Within, 63

Young, Veblen and, 36

CAMBRIDGE: PRINTED DY J. B. PEACE, M.A., AT THE UNIVERSITY PRESS.