325 



Ostromisslensky(l.)207,208,209,223. 



Ostwald (W.) 303. 



Oxalo-diethylt IH <li;unine-chromi-bi 



de 209, 241. 



( >x.ilo-diethylenediamine-cob;ilti l>n .mi 



de 208, 209, 241. 



Oxides (crystal-forms of) .... 141. 

 ^-Oximino-cyclohexane carboxylic acid 



254. 



Oxymethylene-camphor 213. 



O-Oxyphenyl-ethyl-carbinol . . . 292. 



P. 



Packing (most closely) 136, 137, 138, 



139, 140. 



Palladium-anticathode 147. 



Pape (C.) 181. 



Paphiopedilum Hookerae 54. 



Papillionaceae 54. 



Parallelohedron 131. 



Parallelepiped cells . . 113, 114, 115. 



Parallel reflecting planes. . . 21, 27. 



Parallel symmetry-axes . . 117, 124. 



Parameter 76, 81, 140, 141. 



Parameters (irrational) 117, 118, 157, 

 158, 159, 164. 



Parameters (of crystals) 76, 8 1 , 1 40, 1 4 1 . 



Parastichies 155. 



Paris quadrifolia 34, 35. 



Partial pseudo-racemism .... 224. 



Partial racemism . . . 214, 215, 216. 



Paschke (F.) 227. 



Passi flora augustifolia 68. 



Pasteur (L.) 80, 104, 198, 199, 200, 

 201, 207, 211, 212, 213, 216, 220, 224, 

 228, 231, 233, 234, 235, 256, 257, 258, 

 262, 263, 267, 268, 269, 270, 283, 284, 

 285, 286, 287, 288, 292. 



Patterns (finite) 3. 



Patterns (infinite) 111, 112, 120, 121, 

 122, 126, 127, 128, 129, 130. 



Patterns (Rontgen-) 98, 99, 100, 101, 

 143, 175, 186, 189, 190. 



Patterson (Th. S.) . 200, 272, 292. 



Paul (D. M.) 293, 298. 



Peachy (S. J.) 212, 213, 216, 232, 233, 



262. 



Pearson (K.) 286. 



Pelagia perla 59. 



Pelorimn |Q5, 1Q6. 



Pendulum idli; ; . .3. 



Penetration (of crystals) 109. 



Penicillium glaucum . . . 217, 220. 



l'< inline 185. 



Pentagonal dodecahedral symmetry 



42, 43. 



Pentagonal dodecahedron . . 42, 43. 

 Pentagonal dodecahedron-group 



4245. 



Pentagonal dodecahedron (tetrahedral) 



8486. 



Pentagonal icositetrahedron 84, 85, 86. 

 Pentagonal symmetry 60, 159, 164, 195. 



Pentamery 60, 159, 164. 



Pentavalent nitrogen 227, 232, 238,267. 



Pentose 284. 



Pentosuria 284. 



Pentremites orbignyanus . . . 60, 64. 

 Period (of axis). . 22, 116, 117, i 96. 

 Periodical repetition. . . . 1 10, 1 1 1 . 

 Period-number 23, 24, 25, 38, 41, 48, 



49, 50, 52, 53, 63, 65, 67, 75, 79, 87, 



117. 

 Perkin Jr. (W. H.) . . . 250, 254. 



Perowskite 179, 187, 188. 



Pfeffer (W.) 217. 



Pfeiffer (P.) .... 143, 227, 276. 

 Phaenoschisma acutum . . . 60, 64. 



Phaeodaria 45. 



Phalaenopsis Schilleriana .... 195. 



Phase 145, 146. 



Phase-differences 145, 146. 



Phaseo-mannite 252. 



df-Phenantroline-derivatives . . . 107. 



Phenoles (substituted) 195. 



Phenomena (chemical) 106. 



Phenomena (diffraction-) . . 77, 142, 



144, 146. 



Phenomena (physical) 22, 46, 87, 88, 89, 

 90, 91, 93, 97, 101. 



Phenyl-crotonic acid 291. 



AJ-I'henyl-ethyl-amine . . . 213, 293. 



j3-Phenyl-glycerink acid 224. 



Phenyl-group (influence of) ... 272. 

 Phenyl-ethyl-glycolk acid .... 294. 



