331 



Dubsky (J. V.) : 258. 



Dutilh (H.) 221. 



Dyacisdodecahedron . . .86, 87, 88. 

 Dyad character (of substitutes) . 280. 



Dyes (asymmetrical) 226. 



Dynamical equilibrium 229, 236, 301. 

 Dynamical theory (of optical rota- 

 tion) 200. 



Dynamics (chemical) . . . .311, 322. 



E. 



Eccentricities (crystallographical) .172. 



Eder (J. M.) . " 320. 



Effects (aesthetic) . . 2, 3, 4, 5, 6, 7. 

 Effects (physical). . . . 94, 95, 105. 



Eidophone 2. 



Einthoven (W.) 109. 



Electric current. 106, 107, 108, 109,321. 



Electric momentum 105. 



Electromagnetic field 97, 98, 109, 316, 



317. 



Electron-theory 291. 



Electrostatic field 96, 97, 98, 109, 317. 

 Electrolysis (in magnetic field) .321. 

 Elements (crystalforms of) . 141,144. 

 Elements (of pseudosymmetry) 122, 123. 

 Elements (symmetry-) . . 20, 22, 26. 



Elliot (J. H.) 299. 



Ellipsoid 95, 105. 



Emulsine .... 227, 228, 305, 312. 

 Enantiomorphism 48, 82, 131, 134, 135, 



204, 250, 254, 269, 270, 274, 279, 



281, 312. 



Enantiomorphism (conditions of) 47, 48, 

 82, 269, 270. 



Enantiomorphous forms 35, 37, 47, 48, 



110, 135, 205, 257. 



Enantiomorphous molecules 135, 136, 



204, 244, 245, 248, 250, 254, 285, 



286, 288, 295, 298, 312, 319, 321. 

 Enantiomorphous repeats 126, 134, 135. 

 Enantiomorphous systems 35, 37, 47, 



48, 126, 131, 237, 239, 240, 243, 



254, 291. 



Enantiotropy .'.'..' 197. 



Endless figures 112,113. 



Endospherical groups (of 1st order) 42, 



43, 44, 45, 75, 89, 90. 



Endospherical groups (of 2nd order) 64, 



72, 75. 



Endospherical polyhedra 43, 44, 45, 46, 

 47, 71, 72, 73. 



Enzyme-action (asymmetry of) 204, 



222225, 305, 311, 314, 315. 



Enzyme-action (reversibility of) . 228. 



Enzyme-action (specific) 222225, 227, 



305, 311, 312, 314, 315. 



Enzymes 223, 225, 227, 228, 298, 305, 



311, 312, 314. 



Epinephrine 225. 



Equality (of substitutes) 244, 273, 274. 

 Equation (of interference-maxima) 149, 



154, 155. 



Equidistant planes 117, 118, 148, 149, 



150, 153, 155, 156. 



Equilibrium (of antipodes) 233, 236, 



294, 296. 



Equilibrium (chemical) 218, 229, 233, 



236, 294, 296, 302, 304, 305, 314,315. 



Equivalence (of motions) . 14, 33, 34. 



Equivalence (of operations) 14, 33, 34. 



Erlenmeyer Jr. (E.) 218, 236, 266, 



267, 268, 269, 302, 308. 



Errera (L.) ........ 167,301. 



Etherification 305, 306. 



Ethmosphaera siphonophora . . 70, 85. 



a-Ethoxy-propionic acid 229. 



Ethylacetate 273. 



Ethyl--azoxybenzoate 173. 



Ethyl-/?-azoxycinnamate .... 173. 

 Ethyl-a-bromopropionate .... 235. 

 Ethyl-a-chlorophenyl-acetate. . . 308. 

 Ethylene-derivatives (symmetry of) 



236, 266, 267, 268, 269, 292. 

 Ethylenediamine-derivatives 110, 214. 

 Ethylenediaminesulphate . . . .186. 



Ethyl-iodide 281. 



Ethyl-magnesiumbromide .... 309. 



Ethyl-magnesium-iodide 309. 



Ethylpiperidine . . 281. 



Ethylpropylpiperidonium-iodide . 281, 



282. 

 Ethyl-trimethyl-amino-propionate. 235. 



Eudendrium 57. 



Euler (L.) . . 19, 20, 29, 127, 130. 

 Euler's theorems 19, 20, 29, 127, 130. 



Euphorbia Wulfeni 162. 



Evans (C. de Brereton) . . . .281. 



Everest (A. E.) 265. 



Evolutionary development 56, 201 , 202, 



203, 303,319. 



Evolution (of forms) 56, 201, 202, 203. 



Ewald (P. P.) 146, 147. 



Exceptions (to Pasteur's rule) 270, 



271, 272. 



