INDEX. 



301 



Democritus, theory of, 58, 60. 



Descartes, on the ultimate ground 

 of certitude, 20; on creation 

 and preservation, 253. 



Descent, doctrine of, what it real- 

 ly is, 278. 



Discoverers, typical, 228. 



Discoveries, definition of, 227. 



Discrete, the, implies the con- 

 tinuous, 83, 261. 



Divine, early form of conception 

 of the, as Unity, 222. 



JE. 



Elasticity, defined as interfusion 

 of attraction and repulsion, 193. 



Electricity, 95, 191; and mag- 

 netism, 187. 



Elements, chemical, 75; special- 

 ized conditions of homogeneous 

 "matter," 77, 185. 



Ellipse, 176. 



Emanation and absorption, 152, 

 236. 



Energy, absolute unity of, 202; 

 Aristotle's definition of as abso- 

 lute Divine Spirit, 148; as ade- 

 quate cause of motion, 143; as 

 an all-inclusive process, 108; 

 conservation of, 196; conserva- 

 tion of, doctrine of, 199; Her- 

 bert Spencer on conservation 

 of, 202; first law of thought 

 implies the conservation of, 24 ; 

 differentiation of, 205; dissipa- 

 tion of, a phase in a wider pro- 

 cess, 198-9; self-conserved, 214; 

 kinetic, 168: the substance of 

 all reality, 204; totality of, al- 

 ways in equilibrium, 200; sig- 

 nificant change in use of term, 

 148. 



" Environment," 271, 275, 294. 



Equilibrium, of the total, 143 ; of 

 energy, an eternally accom- 

 plished fact, 241; various as- 

 pects of, 104, 143, 199, 222, 

 238, 297, note. 



Ether, 73, 91. 



Evolution, doctrine of, first pre- 

 sented in metaphysical form, 



120; and involution, 252; Her- 

 bert Spencer on, 265; method 

 of, 272; of life forms, 255; phi- 

 losophy, 232. 



Excluded middle, law of, 28. 



Experience, limit of, 5 ; is realiza- 

 tion of knowledge, 23. 



Experiment, must begin in 

 thought, 119. 



F. 



Fact, the one changeless, is 

 the infinitely complex fact of 

 change, 247; true significance 

 of, 228; creation, the one eter- 

 nal, 253. 



" Fact," in part the creation of 

 consciousness, 4. 



Fac,ts, dependent upon theory for 

 their value, 2 ; intelligible only 

 on interpretation, 2. 



Falling bodies, laws of, 163. 



Finite, the, phase of the infinite, 

 100. 



Force, centrifugal, 174; exerted 

 only in opposing force, 62; 

 manifestation of dual, 180; is 

 force only through action, 143; 

 persistence of, Herbert Spencer 

 on, 149; motion as a realized 

 form of, 167; the "active" 

 phase of the world, 62; sole 

 reality of matter, 64. 



Forces, 'chemical, identity of with 

 other natural forces, 186; cor- 

 relation of, 196. 



Force-centre (atom), focus of 

 an indefinitely extended force- 

 sphere, 144. 



Freedom and necessity, 238. 



o. 



Generation, spontaneous, 260. 



God, the only reality, 241 ; Chris- 

 tian conception of, 224. 



Gravitation, dependent upon 

 quantity, not quality, of mat- 

 ter, 155; law of, 145, 150. 



Gravity, center of, 50 ; a necessa- 

 ry aspect or mode of things, 

 158, 172. 



