332 



Explanation (of crystallographical phe- 

 nomena) 136, 137. 



Extended theory (of So hn eke) 132, 133. 

 Eyde (S.) 109. 



F. 



Faces (possible) 79, 80. 



Fajans (K.) 224, 227, 311, 312,313. 



Falkenberg (H.) 201. 



Fedorow (C. E. Von) 12, 75, 112, 126, 



134, 137. 

 Fehling's solution ....... 320. 



Feldspars . . . /T 176. 



Ferments 223, 225, 227, 298, 312, 314, 



315. 



Ferric-salts (photochemical catalysis by) 



318. 



Fibonacci . . 162, 165. 



Field (electrostatic) . . 96, 97, 316,317. 



Field (magnetic). 96, 97,98,316,317. 



Figures (stereometrical) 3, 13, 14, 15, 



16, 19, 20, 36, 47. 



Figures (symmetrical) 2, 3, 8, 9, 11, 14, 

 19, 20/22, 33. 



Findlay (A.) 221,222. 



Finite figures 17,18,19,22,28,33,34, 113. 

 Finite systems 17, 18, 19, 22, 28, 112, 



113. 

 Fischer (E.) 209, 212, 221, 224, 227, 



228, 231, 235, 248, 257, 287, 289, 



290, 291, 295, 300, 301, 302, 303, 305, 



306, 307, 309. 



Fischer (P.). , 177, 198. 



Fiske (P. S.) 311,314. 



Fission (of racemoids) 204, 206, 207, 



208, 211, 217, 218, 219, 220,222,225, 



232, 297, 305, 308. 



Fission (methods of) 204, 206, 207, 208, 



217, 218, 219, 220, 222, 225, 228, 232, 

 298, 308. 



Fission (spontaneous) 204, 207, 208, 

 209,211,212, 214,215, 216,217. 



Fitz Gerald (G. F.) 301. 



Fivefold symmetry 36. 



Fixed point 15, 18, 114. 



Flatau (E.) 248. 



Flowers (symmetrical) . . 3,55,201. 



Fluid crystals 173, 174. 



Fluoro-chloro-bromo-acetic acid . 246. 

 Fluoro-chloro-bromo-methane . . 246. 

 Fluorspar. . .74, 175, 184, 192,193. 

 Forces (molecular) 302. 



Formaldehyde 302, 303. 



Forms (simple) 86,87, 88. 



Forms (unrestricted) . . .86, 87, 88. 

 Formula (structural) . . . 237269. 

 Fuorfold symmetry .... 23, 36. 



Foxglove 201. 



Fraction (continuous 161, 162, 163, 169. 

 Fractional crystallisation . . . .217. 



Fraenkel (S.) 226. 



Frankland (P. F.) 204, 206, 229,265, 

 286,289,290,292,301,305, 



Fraxinus 60. 



Frequency-curves 106, 111. 



Fresnel (A.) 185. 



Freundler (P.) 248,318. 



Friedel (C.) 144. 



Friedel (G.) 101, 125, 135, 138, 177, 



179, 264. 

 Friedrich (W.) .... 100, 146, 147. 



Friman (E.) 150,299.300. 



Friswell (R. J.) 203. 



Frohlich (E.) 236,241. 



<f-Fructose 299. 



Fruits (multiple) . . 161, 162, 166, 168. 

 Fruits (symmetrical) .... 37, 41. 



Fumaria spicata 47, 55, 299. 



Fumaric acid 310. 



Functional dissymmetry 57. 



Fundamental domain. . . . 134, 135. 



Fungi 312. 



Furnaces (Birkeland-Eyde-) . . 190. 

 Fylfot-symbols 37. 



G. 



Gadamer (J.) 234, 290. 



Gadolin (A.) 75, 77, 80, 84, 86, 86. 



Gaertner (J.) 60, 61, 63. 



Gelactose 228. 



Galeopsis dubia 55. 



Garnet 184, 192, 193. 



General character (of axes) 22, 23, 



50, 51. 



General deduction (of theorems) 27, 31, 



50, 52, 53, 66, 67, 68. 



General operations (of 2nd order) 17, 



24, 30, 50, 51. 



Generatrix ... 161, 162, 165, 168. 



Geometrical anomalies 185. 



Geometrical centre 15, 18, 22, 114. 



Geotropism 57. 



Gerald (G. F. Fitz) 301. 



Gernez (D.) . . 212, 213, 215, 231. 



