INDEX 



Epistemology, 87 

 Equality of vectors, 31 

 Equations, differential, 35 

 — , unsolvable, 37 

 Equilibrium, 74 

 — , stable, 77 

 — , unstable, 78 

 — , neutral, 78 



— and coupling, 82 



— in Markov chain, 167, 229 

 — , absent, 258 

 Equivocation, 189 



Error, 190, 219 

 Essential variables, 197 

 Ethyl acetate, 71 

 Even and odd, 104 

 Everyman, 122 

 Evolution, 196 

 Exercises, vi 

 Experience, law of, 137 

 Experimentation, 89 

 Exponential growth, 70 



— series, 173 

 Expression, 30 

 Eyes, 130 



Factor, 5 

 Feedback, 51, 53, 237 



— and stability, 80 



— and variety, 1 57 

 Felis, ni 

 Fencer, 201 



Fermentation, 125, 183 

 Fibonacci, 19 



Fisher, Sir Ronald, 5, 245, 259 



— and F. Yates, 234, 273 

 Fluxion, 74 

 Fly-paper, 167, 229 

 Flying Saucer, 87 

 Form, 31 



Fourier analysis, 47 

 Frequency, 47, 163 



Gale warning, 140 

 Galileo, 121 

 Game, 202, 240 

 Gas law, 45, 62 

 Gene-pattern, 62, 198, 270 

 General, 211 

 Geometry, 2 

 Ghosts, 60 

 Goal, 81, 219, 230 



Goldman, S., 110,273 



Golfer, 231 



Grand Disturbance, 249 



— Response, 249 

 Granit, R., 82, 273 

 Graph, 94 



— , kinematic, 22 



— as constraint, 130 

 Guest, 204 

 Gunpowder, 70 



Half-truth, 104 

 Haunted house, 60 

 Heart, 252 



History of system, 115, 170 

 Hitler, A., 213 

 Homeostasis, 81, 196 

 Homeostat, 83, 233, 260, 271 

 Homo, 198, 252 

 Homomorphism, 103 

 Hot or cold ?, 235 

 House lights, 125 

 Humours, 191 

 Hunt and stick, 230 

 Hunter, 200 

 Hunting, 236 

 Hydrogen chloride, 110 



— iodide, 122 



Identity, 15 

 Immediate effect, 56 



, diagram, 57 



Inaccessible, 92 



Incense, 60 



Incessant transmission, 161 



Incomplete observation, 113 



Incubator, 236 



Independence in behaviour, 58 



— in variety, 128 

 Infinitesimal, 9 

 Information, 123, 245 



— theory, 3 



— , gain of, 178 



Initial state as noise, 217 



Input, 44, 87 



— and design, 254 

 Insect, 165 

 Insolubility, 69 

 Instinct, 26 

 Instrumentation, 143 

 Insulator, 93 

 Integration, 37, 173 



291 



