INDEX TO THE PEOCEEDINGS. 



group, 296 ; on the Grraptolites of 



the Couiston flags, with notes on 



the British species of the genus 



Grajptolites^ 521 ; on the G-rap - 



tohtes of the SMddaw series, 8, 



125. 

 Norfolk and Suffolk, structure of the 



crag-beds of, 288, 460. 

 Northamptonshu'e Oohtes, section of 



banded yellow rock in the, 390 ; 



variegated iron-ore deposits of the, 



395. 

 Norwich Crag, new species of Deer 



from the, 516. 

 Oohtes, section of banded yellow rock 



in the Northamptonshire, 390 ; 



variegated iron-ore deposits of the 



Northamptonshu-e, 395. 

 Organic matter in inducing variega- 

 tion, influence of, 371. 

 Ormerod, Gr. W., Esq., on the " Wa- 



terstone beds " of the Keuper, and 



on pseudomorphous crystals of 



chloride of sodium, 546. 

 Osteorachis macrocephalus, 500. 

 Oxide, bleacliing of red beds due to 



abstraction of the colouring, 359. 

 Oxide of manganese in Carboniferous 



grit and sandstone, section showing, 



399. 

 Palaeozoic rocks of South Devon and 



East Cornwall, 400 ; the Princes 



Islands, Sea of Marmora, 56. 

 Pamur, section through, 487. 

 Paracyathus Henekeni, 16. 

 ParaUel Eoads of Glen Eoy, 83, 273. 

 Parallehsm of the Alpine and Sub- 



himalayan sections, 48. 

 Paris, section in a clay -pit at Vaugi- 



rard, 372. 

 Patagonia, fossils from Port Santa 



Cruz, 505. 

 Pebble-beds of Middlesex, Essex, and 



Herts, Mr. S. V. Wood, jim., on 



the, 464. 

 Pendle Hills, Lancashire, thickness of 



the Carboniferous rocks of the, 319. 

 Pendle range, sections across the, 324, 



328. 

 Pengelly, near Linkingham, section 



from Yeolm Bridge to, 417. 

 Pennine Chain, age of the, 329. 

 Periods of denudation in Lancashire 



and Yorkshire, 332. 

 Petala, Island of, Sea of Marmora, 



61. 

 Peterborough to Newark, section from, 



160. 

 Petherwin, list of fossils from, 450. 

 Phascolarctos cinereus, 313. 



Phillips, Prof. J., on the Hessle Drift 

 as it appeared in sections above 

 forty years since, 250. 



Phyllograpsus angustifohus, 132. 



typus^ 133. 



Physical features and lines of elevation 

 of the Carboniferous districts of 

 Lancashire and Yorkshfre, Mr. E. 

 Hull on the relative ages of the, 

 323. 



Physical geography of Argyllshire in 

 connexion with its geological struc- 

 ture, 255 ; of Hertfordshire, 284. 



Placotrochus Lonsdalei, 17. 



Saiclcinsi, 18. 



Plains of Hertfordshire and their gra- 

 vels, Mr. T. M'K. Hughes on the 

 two, 283. 



Plateau of Saxon Switzerland, section 

 illustrating the last upheaval of the, 

 551. 



Plati, Island of. Sea of Marmora, 62. 



Pleurograpsus vagans, 144. 



Pluvial period, Mr. A. Tylor on a, 

 120. 



Plymouth and Torbay limestones, 427 ; 

 beds below the, 414 ; beds overly- 

 mg the, 433. 



Pocillopora crassoramosa, 17. 



tenuis, 21. 



Pollaphant, section through, 418. 



Portland beds in the Speeton Clay, 

 237. 



Postglacial structure of Lincolnshire 

 and South-east Yorkshu-e, 2, 146. 



Posttertiary submergences of the 

 shores of the Bristol Channel, 282. 



Prse-Permian flexures of Lancashire, 

 section illustrating the, 324. 



Prestwich, J., Esq., on the structure 

 of the Crag-beds of Norfolk and 

 Suffolk, with some observations on 

 their Organic Remains. Part I. 

 CoralHne Crag, 288. 



Princes Islands in the Sea of Mar- 

 mora, Mr. W. R. Swan on the geo- 

 logy of the, 53. 



PrinMpo, Island of, Sea of Marmora, 

 53. 



Proti, Island of, Sea of Marmora, 

 61. 



Pseudomorphous crystals of chloride 

 of sodium, 546. 



Pteraspis Cornubicus, 546. 



Pterygotus, Mr. H. Woodward on 

 the structure of, 294. 



iilobus, 294. 



ranicejps, 294. 



Purbeck beds of the Bas-Boulonnais, 

 481. 



