175 



Planorbis Falsani . . 1884 



— Heriacensis .84 



— Philipp ei 84 



— praecursor .... 84 



— Tournoueri .... 84 

 Planorbulina planissima . 84 



— Reussi 82 



Plasticität der Gesteine . 82 



Platatherium , ... 83 



Platin, eisenhaltiges . . 80 



— New York .... 83 

 Platyceras ..... 82 

 Platycrinus Bloomfieldiensis 80 

 Platyops Bichardi . . .81 

 Platyphyllum 1884 I 132. 83 

 Platypodosaurus robustus 



1881 I 276. 82 



Platysomidae . . . . 81 



Platy Stoma 81 



Pleiolinis ...... 83 



Pleistocän, Bergamo . . 82 



— Berlin 81 



— Mecklenburg ... 81 



— England 1881 II 252. 82 



— Hildesheim .... 84 



— Libysche Wüste . . 84 



— Wisconsin .... 83 

 vgl. Alluvium , Dilu- 

 vium und Quartär. 



Pleochroismus der Mine- 

 ralien 84 



Pleonast in verglastem 



Gneiss 80 



— in Nephelinsyenit . . 80 



— Elba 82 



Plesiodiceras .... 83 



Plesiolampas 83 



Plesiosaurus 1883 I 309. 84 



— latispinus .... 83 

 Pleuracanthus 



1881 I 105. 83 

 Pleuraspidotherium Au- 



monieri 83 



Pleurechinus javanus . . 80 



Pleurodictyum .... 80 



Pleuromya Charlottensis . 81 



Pleuronautilus .... 83 



Pleuronotus 82 



Pleuropeltus Suessi . . 83 



Pleuropholis Egertoni . 84 



— Thiollieri .... 84 

 Pleurophorus acuteplicatus 82 



— complanatus ... 82 



— subovalis 82 



Pleurosternon Koeneni . 84 



— miocenicum .... 83 



II 253 

 II 250 

 II 253 

 I 355 

 II 253 

 II 427 

 I 154 

 I 221 



I 302 



178 

 27 



I 294 



386 

 111 



II 246 



I 443 

 II 112 

 II 103 



I 529 

 II 241 



I 225 



I 232 

 II 129 



I 345 

 II 46 

 II 343 



II 3 



II 284 

 II 168 



I 189 

 II 275 



I 503 

 II 105 



I 97 



II 65 



I 475 

 II 236 



I 435 

 II 411 



I 495 



I 295 

 I 313 



II 108 

 II 108 

 II 108 

 II 108 

 II 108 

 I 347 



II 106 



Pleurotoma Auingeri, des- 









cendens .... 1880 



Ii 



398 



— Essomiensis .... 



82 



I 



451 



— Floriana 



80 



II 



398 



— plagioptyx .... 



83 



II 



94 





83 



I 



475 





83 



I 



475 





80 



II 



398 



Pleurotomaria 









1881 II 104, 280. 



82 



I 



295 



— humillima .... 



BB 



I 



30 



— margaritifera . . . 



84 



Ii 



398 



— Merceyi 



80 



II 



386 



— Skidegatensis . . . 



81 



II 



411 



— subcarinata .... 



BB 



I 



29 



Plicatocrinus Fraasi . . 



82 



Ii 



293 



Plicatula echinoides . . 



83 



1 



81 



— pamplonensis . . . 



83 



II 



55 



Plioplatecarpus Marshii . 



83 



Ii 



271 



Plocoscyphia Eggeri . . 



82 



I 



76 





82 



II 



281 



Plumulites devonicus . . 



83 



II 



402 



Podocrates Düimensis 



80 



II 



232 



Podopteryx Albyi . . . 



83 



I 



482 





83 



I 



482 



Poebrotherium Sternbergii 



82 



I 



103 



Poecilozonites .... 



84 



II 



139 



Poekilopleuron .... 



80 



II 



108 



Pogonodon platy copis 



82 



I 



102 



Polacanthus Foxii . . . 



83 



II 



398 



P olaris ationsapp arat 









1880 II 5. 



82 



II 



179 



Polarisationserscheinungen 



81 



II 



150 



— an Calcitsphaerolithen 



82 



I 



4 



— an Platincyanür . . 



80 



II 



280 



— an Zwillingen . . . 



82 



I 



7 



Polarisationsinstrumente 



81 



II 



7 



Polarisator 









81 II 318. 1882 II 338. 



84 



II 



154 



Polarispoctromikroskop . 



83 



I 



2 



Pollicipes, Kreide, Rügen 



81 



II 



419 



Pollucit, Elba .... 



81 



II 



176 



Polycyphus Beltremieuxi 



84 



II 



263 



Polydimie 



80 



I 



338 



Polyhydrit, Breitenbrunn 



82 



II 



21 



Polykras, Norwegen . . 



80 



II 



22 



Polyrhizophora jurassica 



83 



II 



61 



Pontische Stufe, Czeiko- 











82 



I 



253 



Populus tremulaeformis . 



82 



I 



140 



Porphyr, Balduinstein 



82 



II 



229 





82 



I 



211 



— Bötzen 



82 



II 



284 



— Lugano 









1881 I 410. BB II 9, 



BB 



II 



20 



— Sachsen 



81 



II 



214 



