GENERAL INDEX, 



with overlying land-debris &c, east 



side of, 35 ; section of raised beach 



and old cliff on the west side of, 36 ; 



section showing longitudinal breaks 



in the old beach, 37. 

 Portland mammiliferous drift, 31. 

 Powderham Castle, section through, 



352. 

 Pra Sands, near Sydney Cove, elvan 



from, 336. 

 Prairies of Central North America, 



610. 

 Prestwich, Prof., on the phenomena 



of the Quaternary period in the Isle 



of Portland and around Weymouth, 



Priodontognathus Phillipsii, Prof. 



Seelev on the maxillary bone of, 



439. 

 Prorastomus sirenoides, Prof. E. Owen 



on, 559. 

 Protocardium bombax, 509. 

 Psammechinus Woodsi, 447. 

 Pseudodiadema Carteri, 302. 

 Ptilograptus acutus, 662. 



cristula, 661. 



HicTcsii, 661 , 



Purbeck Limestone, Prof. Seeley on 



an Ornithosaurian from the, of 



Langton, near Swanage, 465. 

 Pycnodus quincuncialis, 223. 



Quartz felsite of St. John's Vale, 584 ; 

 dyke of Armboth and Helvellyn, 

 585 ; of Fairy Crag, 586. 



Quartz-felsite dykes from the Eskdale 

 granite, 580. 



Quaternary period, Prof. Prestwich 

 on the phenomena of the, in the 

 Isle of Portland and around Wey- 

 mouth, 29. 



Badstoek, Mr. E. Tate on the Lias 

 about, 493. 



Eaised Beach at Portland, fossils from 

 the, 33, 52. 



Eajmahal Hills, plant-bearing series 

 of, 521. 



Baniganj Coal-field, 520. 



Pas es Sutteh, section through, 11. 



Pas Sheik el Ballan, 2. 



Beading, Berkshire, Prof. T. E. Jones 

 and Mr. C. Cooper King on some 

 newly exposed sections of the "Wool- 

 wich and Eeading beds " at, 451. 



Eed Eiver, yalley of the, 610. 



Eedruth, granite from Carn-Brea Hill, 

 331. 



Eeindeer in Windy-Knoll fissure, 248. 



Eewah, South, plant-bearing series of, 

 521. 



Eheetic beds and Boulder-clay, Eev. 

 A. Irving on a section of, near Not- 

 tingham, Ixxxi. 



Ehinoceros tichorhinus, in Creswell- 

 Crag cave, 690. 



Ehizodus, Mr. L. C. Miall on the 

 structure of the skull of, 624. 



, figure of the skull of, 625. 



Eigghause End, Vale of St. John, mi- 

 croscopic structure of altered ash 

 of, 412. 



Eingstead Bay, Lower Kimmeridge 

 at, 212; Upper Kimmeridge clay at, 

 200. 



Eissoa subcylindrata, 52. 



Eocks of the mining-districts of Corn- 

 wall, Mr. J. A. Phillips on the, 319. 



Eocky Mountains, 618. 



Eose Hill, greenstone from, 329. 



Bostellaria rasenensis, 224. 



Eugby, Mr. J. M. Wilson on the pro- 

 bable existence of a considerable 

 fault in the Lias near, and of a new 

 outlier of the Oolite, 355. 



Eutley, Frank, Esq., on some peculia- 

 rities in the microscopic structure 

 of felspars, 479. 



St. Austell, killas from Polgooth 

 mine, 321, 323; killas from Pol- 

 mear mine, 323 ; killas from Sanc- 

 tuaries, 323. 



St. David's, fossils from the Arenig 

 group at, 176 ; Messrs. Hopkinson 

 and Lapworth on the Graptolites 

 of the Arenig and Llandeilo rocks 

 of, 631. 



, Pembrokeshire, Mr. H. Hicks 



on the succession of the ancient 

 rocks in the vicinity of, with special 

 reference to those of the Arenig 

 and Llandeilo groups, and their 

 fossil contents, 167. 



St. John's Vale, quartz felsite of, 584. 



Samaria, section through, 12. 



Sanctuaries, St. Austell, killas from 

 323. 



Sand-blast, effects of, in the desert, 17. 



Satpura basin, plant-bearing series of 

 the, 522. 



Scalpellum reticulatum, 232. 



Scaphites Meriani, 287. 



Section of the plateau of Tih, 11 ; 

 from the Gulf of Akaba to the 

 valley of the Jordan, 12 ; on top of 

 cliff near the Boat-haul, Bill of 

 Portland, 34 ; of raised beach with 

 overlying angular land-debris, loam, 

 and sand, east side of Portland Bill, 

 35 ; of raised beach and old cliff on 

 the west side of Portland Bill, 36 ; 



