343 



Rotation (specific) 246, 248, 253, 286. 



Rotatory dispersion 249. 



Rotatory power 110, 184, 185, 186, 187, 

 188, 204, 206, 213, 232, 233, 234, 

 235, 246, 248, 250, 251, 270, 271, 

 273, 274, 277, 282, 283, 292. 



Rothe (O.) 236. 



Rotschy (A.) 225. 



Roxburghia gloriosoides 36. 



Rubidiumdithionate .... 184, 186. 



Rubidiumnitrate 177. 



Rubidiumracemate 208. 



Rubidiumtartrate. 208, 278. 



Ruff (O.) 203. 



Rule (Joh. Muller's) 70. 



Runge (C.) 147, 151. 



Rupe (H.) 206,286. 



Rutherford (E.) 111. 



Rutile. 192, 193. 



s. 



Saccharose 295. 



Sachs (J.) 36, 166,167,169. 



Sadebeck (A.) 174. 



Salt-hydrates 132, 133. 



Santonine-salts 222. 



Saponification . . . 304, 305, 306, 309. 



Saurel (P.) 37. 



Scacchi (A.) .... 187, 207,208. 

 Scalar properties . . . . 93,219,217. 



Scales 160. 



Scheelite 64, 99. 



Scheffer (F. E. C.) 158. 



Scheibler (K.) 289. 



Schelderup (H.) 188. 



Scherrer (P.) 147, 157. 



Schiebold (E.) 147. 



Schimper (K. F.) . . . 160, 166, 169. 



Schlippe's salt 184,278. 



.Schmitz (M.) . 202. 



Schnorr (W.) 89. 



Schoenflies (A.) 11, 37, 53,75,112, 



126, 134, 135, 137. 



Scholtz (M.) . . /.. 242, 306, 307. 



Schoute (J. C.) 169. 



Schreinemakers (F. A. H.) . . 210. 



Schiitt (K.) 157. 



Schwendener (S.) 166. 



Scolezite 180. 



Scopolamine 225, 235. 



Scopoline ...... ....'. . 299. 



Screw 42. 



Screw-axis 31, 143. 



Screwthread 9. 



Section aurea 163, 169. 



Sedentary life (of living beings) . 56. 



Segments (rational) ' 78, 79. 



Selective action (of ferments) 223, 224, 



225, 227, 228, 298. 



Selective action (of interference) . 149. 



Selective colouring 226. 



Selenium-atom (asymmetric) . . . 242. 



Senarmont (H. de) 264. 



Senary axis. . 23, 26, 81, 130, 143. 



Senter (G.) 290, 293. 



Sequence (of operations) .... 17. 

 Series (Fibonaccian) . . 162, 165. 



Series (K-, L-, and M-) 151. 



Series (of operations) . . 34, 50, 51. 

 Series (of reflections) 27, 28, 29, 30, 31. 

 Sets (of binary axes) .... 38, 39. 



Shibata (Y.) 211. 



Shifting (parallel). ... 14, 15, 28. 



Shimizu (T.) 106. 



Siegbahn (M.) ..... 150, 151. 



Sign (change of) 251, 252. 



Silica-structures 69. 



Silicon-atom (asymmetric) .... 242. 



Silver 144. 



Silver-acetate 235. 



Silvercarbonate 288. 



Silver-iodide 59, 60. 



Silver-oxide 288, 290. 



Simon (L.) 229, 304. 



Simplicity (of indices). ..... 79. 



Simulative symmetry 177, 178, 179, 



181, 183. 

 Simultaneous motion (of planes) 



27, 28, 29, 30, 31. 



Situs inversus 201 . 



Sixfold symmetry 23, 26,81, 130, 143. 



Skita (A.). 287. 



Slimmer (M.) 306, 307. 



Smirnoff (A. P.) 253. 



Smits (A.) 158. 



Snowcrystals 172, 173. 



Sodium 152, 153, 154, 155, 156, 157, 

 202, 267, 317. 



Sodium-ammoniumracemate 204, 207, 



212, 213, 281. 



Sodium-ammoniumtartrate 195, 207, 



214, 296. 



Sodiumbromate 184, 186, 278, 279. 

 Sodium-a-camphornitronate . . . 220. 



