310 



Allyl-iodide 282. 



Alum 6, 179. 



Aluminium-tartrate . 226. 



Amethyst 222. 



Amino-acids 278. 



Amino-succinic acid (hydrochloride)273. 



Ammonia 274. 



Ammonium-bimalate . . . 203, 258. 

 Ammonium-bromo-camphor-sulphonate 



212. 



Ammonium -lithium-sulphate 181, 182. 

 Ammonium-malate .... 207, 224. 

 Ammonium-phenyl-amino-acetate. 278. 

 Ammonium-phenyl-chloro-acetate . 278 . 

 Ammonium-racemate . . . 202, 217. 

 Ammonium-sodium-racemate 198, 201, 



207, 266. 



Ammonium-sodium-tartrates . . .281. 

 Ammonium-tartrate . 207, 220, 224. 



Ammonium-zinc-lactate 206. 



Ampere (A. M.) 104. 



Amphibole 62, 63. 



Amphithetras elegans .... 64, 68. 



Amplitude 149, 150, 152. 



/-Amyl-alcohol .... 281, 289, 290. 



/-Amyl-bromide 227. 



act. Amyl-benzoyl-formate ... . 301 . 



act. Amyl-carbamate 224. 



/-Amyl-cinnamate 291 . 



Amyl-glycerate 289. 



Amyl-iodide 292. 



Amyl-lactate 289. 



Amyl-mandelate 301 . 



1 -Amyl-3-nitro-phtalic ether . . 224. 

 2-Amyl-3-nitro-phtalic ether . . 224. 



Analcite 176, 179, 187, 188. 



Analytical expression 9, 150, 157, 158, 



164, 226. 

 Ananassa saliva . 156, 158, 161, 163. 



Anaxonia . . 69. 



Angle (characteristic) .... 19, 22. 



Angle (enclosed) 26. 



Angle (glancing-) . 144, 147, 148, 149. 



Aniline (as solvent) 296. 



Aniline (substitution-products of) 195. 



Animals (symmetry of) 3, 34, 35, 45. 



55, 60, 64, 67, 164, 195. 



Anisaldazine . . 169. 



Anisotropy (of liquids) . . 168, 169. 



Annona tripetala 68. 



Anomalies (geometrical) 180. 



Anomalies (optical) 172, 179, 180, 182, 



184. 



Antipodes (crystal-forms) 199, 260, 261, 



262. 



Antipodes (physical properties) 199, 202, 



203, 204, 205, 206, 211, 228 



Antipodes (resolution into). 200, 201, 



202, 203, 204, 205, 206, 207228. 



Antirrhinum maius . . . . . . .196. 



Antoni (W.) 219. 



Apatite 62, 179. 



Apex (growing) 161, 196. 



Apophyllite 179, 187, 188, 189, 190. 

 Apparent symmetry 120, 166, 180, 193. 



Appiani (G.) 218. 



Approximate forms . . 119, 120, 170. 

 Approximate symmetry 119, 120, 170. 



171, 172, 173193. 



Arabinose 285. 



Aragonite 173, 174. 



Architecture (symmetry in) 2, 3, 4, 5, 6. 



Aristotle 7. 



Armstrong (E. F.) 220. 



Armstrong (H. E.) 276. 



Arnold (A.) 255. 



Arrangement (atomic) 228, 244, 245. 



246, 247269, 278. 

 Arrangement (periodical) 133, 134, 154, 



156, 157. 



Arrangement (symmetrical) 4, 5, 17, 

 108, 111, 133, 134, 152, 154, 160. 



Arrhenius (S.) 276. 



Arsenic 140, 141. 



Art (role of symmetry in) 2, 3, 4, 5, 6. 

 Artificial synthesis 283, 285, 286, 287, 



299. 

 Aschan (O.) . . . 223, 232, 233, 249. 



Ascidiae 54, 59, 61. 



Asparagine .... 206, 207, 218, 219. 

 Aspartic acid .... 273, 274, 276. 



Aspergillus Wentii 220. 



Aspidistra elatior 59. 



Assemblages (of equal spheres) 138, 139, 



140, 141. 

 Asterias ruber .61. 



