328 



Repetition (symmetrical). . 2, 3, 4, 5. 



Resau (C.) 215, 216. 



Residual affinities. . 276. 



Retrograde mutation 196. 



Retrogression . . 196. 



Reusch (E. Von) 181, 264. 



Reversibility 191. 



Review (of symmetry-groups) . . 73. 



Rhodium-anticathode 147. 



Rhodium-salts (complex) 214, 225, 242, 



260. 



Rhombic-dodecahedron . 85, 86, 148. 

 Rhombic system . . . . 67, 81, 119. 



Ribose 285. 



Riecke (S.) ....... 123, 134. 



Ries (A.) 192, 193. 



Riiber (C. N.) 224. 



Rimbach (E.) 264. 



Rhine (F.) ... 98, 143, 176, 177. 



Rivina brasiliensis 46. 



Rivina humilis 46. 



Rock-salt 148, 149, 169. 



Ron t gen-patterns 98, 99, 100, 101, 143, 



175, 186, 189, 190. 



Rontgen-radiation 77, 97, 98, 99, 101, 



109, 133, 141, 142, 143, 146, 148, 149, 

 186, 189, 191, 277. 



Rohn (K.) 123. 



Romburgh (P. Van) . . 259, 284. 



Rome de 1'Isle (J. B. L.) . . . 167. 



Roozeboom (Bakhuis, H. W.) 203, 



204, 215, 222. 



Rosenbusch (H.) 87. 



Rosenthal (J.) 302. 



Rosenthaler (L.) 295. 



Rotation (about axis) 7, 12, 13, 17, 18, 

 19, 22, 26, 33, 72, 87, 88, 89, 103, 



110, 116, 123, 124, 125. 

 Rotation-dispersion 239, 240, 260, 261. 

 Rotation (mole.cular) . . 237,241,253, 



272, 273. 



Rotation (optical) 106, 107, 179, 180, 182. 

 Rotation (specific) . . 237, 239, 243, 



264, 272. 



Rotatory power 106, 107, 179, 180, 182, 



199, 200, 207, 224, 225, 228, 237, 239, 



241, 253, 257, 260, 261, 262, 263, 264, 



268, 273. 



Rothe (O.) 227. 



Roxburghia gloviosoides 35. 



Rubidium-dithionate . . . 179, 181. 



Rubidium -nitrate 172. 



Rubidium-racemate 202. 



Rubidium-tartrate. . . 202, 263, 264. 



Rule (Joh. Miiller's) 68. 



Rupe (H.) 200, 272. 



Rutile 187, 188. 



S. 



Saccharose 280. 



Sachs (J.) .... 35, 160, 161, 163. 



Sadebeck (A.) 169. 



Salt-hydrates 129. 



Santonine-salts 216. 



Saponification . . 289, 290, 291, 294. 



Saurel (P.) .' 36. 



Scacchi (A.) 185, 201, 202. 



Scalar properties 91, 204. 



Scales 155. 



Scheelite 62, 96. 



Scheibler (K.) 275. 



Schelderup (H.). ....... 183. 



Scherrer (P.) 143. 



Schimper (K. F.) 155, 160, 161, 163. 



Schlippe's salt 179, 264. 



Schnorr (W.) 87. 



Schoenflies (A.) 10, 36, 52, 74, 109, 

 123, 130, 131, 132, 134. 



Scholtz (M.) 233, 291, 292. 



Schoute (J. C.) 163. 



Schreinemakers (F. A. H.) . . 204. 



Schwendener (S.) 160. 



Scolezite 175- 



Scopolamine 226. 



Screw 41 . 



Screw-axis 30, 140. 



Screw-thread 8. 



Sectio aurea 157, 158, 159. 



Sedentary life (of living beings) . 55. 



Segments (rational) 76. 



Selective action (of ferments) . .217, 



218, 219. 



Selective action (of interference) . 145. 

 Selenium-atom (asymmetric) . . . 233. 

 Senarmont (H. de) 252. 



