INDEX 309 



Crookes, Sir William 30 



Crystalloids 288 



Curie, Marie 82 



Pierre 82 



Curtis, W. C 246 



Dalton, John 89 



Dantec, Felix le 173 



Darwin, Charles 198, 199, 200, 205, 206, 243 



Darwin's Origin of Species 198 



Darwinism 203 



Davy, Sir Humphry 285 



Death 51, 277, 278 



causes of 166 



Gaskell's theory of 153, 157, 165-168 



Descartes, Rene 200 



Descent, bases of the current theory of 208, 209 



current theory of 242, 244 



difficulties of the current theory of 203-213 



first teaching of 199 



man's 199-202, 243, 244 



rejection of the current theory of 243-245 



theory of 199, 202 



Differences, qualitative, how caused 141 



Dissociation, the ultimate in 108 



Driesch, Hans 25, 28, 48, 175, 212, 220 



Duane, W 287, 299, 304 



Duckworth, W. L. H 201 



Earth, early 63, 64, 65, 236 



the 79, 80 



Eddington, A. S 79 



Egg, the 227, 228 



specificity of 232 



Ehrenberg, C. G 283 



Ehrenhaft, F 104 



Einstein.. Albert 29, 70, 75, 291, 298, 299, 300 



theory of light-quanta 298 



and Compton effect 287, 300 



of relativity 29, 75, 291 



Electrical stimuli and death 277 



Electric charge 83, 107 



on colloids 70, 71 



A 



