Vol. 59.] 



GENERAL INDEX. 



475 



Nine-Acre Pit (Shenley Hill), 239. 

 Nitrogen (& organic carbon), in clays 



& marls, 133-41". 

 Nkoka's Kraal ^S. Rhodesia), 289, 282. 

 Noble, J. E., 29. 

 Noeggerathiopsis Goepperti, 26, 27. 



Hislopi, 25, 27. 



Nomenclature of ammonites, 461-62. 

 Nominations for Council invited, iv. 

 Normandy, Toareian of, comp. w. that 



of Bredon Hill, &c, 452-55 fig. 

 North-West Provinces (India), see 



United Provinces. 

 Northampton Sands at Caythorpe, 29, 



30, 32. 

 ' Northern Sediments ' of S. Rhodesia, 



267-75 & pi. xix (sects.). 

 Nubian Sandstone at JebeL Barka, 69. 

 Number of Fellows, &c, ix, xix. 



Obituaries, lii-lxvi. 



Obsidian, fr. Jigjiga, 301. 



Obsidian Cliff (Yellowstone), primary 

 devitrificat. at, 431-32 ; feather- 

 like crystals in porous spherulites of, 

 431 & pi. xxvi. 



Offa's Dyke (Chepstow), step-fault N. 

 of, 391, 392 fig. 



Officers & Council elected, xxii. 



Olafsvikur-enni (Iceland), 357. 



Oliver, F. W., viii. 



Olivine-basalt of S. Abyssinia, 295-96. 



Oolite-Marl at Cranham Wood, 388. 



Oolitic (or granular) limestones of 

 Ashbourne & Buxton Ry., 345, 346- 

 47 & pi. xxiii (microscop. sects.). 



Ophicalcite of Iona, 102. 



Ordovician fauna in Bunter Pebble- 

 Beds, 317, 326 et seqq.; see also 

 Keisley Limestone, §c. 



Organic carbon (& nitrogen) in clays 

 & marls, 133-41. 



' Organized accidents,' 52. 



Orthidas of Keisley Limest. in Peel 

 Sandst., 308-309. 



Orthis budleiyheusis, occurr. of, 320, 

 326, 328, 332. 



Orthoclase, blue tourmaline derived 

 from, 151, 152; orthoclase (?) in 

 Tredorn Beds, 414. 



Ossiferous cavern of Plioc. age at Dove- 

 holes, 105-32 figs. & pis. viii-xii. 



Ost.racoda in Rhsetic of Sedbury Cliff, 



394 & pi. xxiv. 

 Ostrea discoidea, 378-79. 



Ottrelite, disting. fr. clinochlore, 423, 

 428. 



Oulton Broad (Suffolk), well-section 

 near, 39-40. 



Overbury (Worcest.), 445 ; Benck- 

 mannia from, 459 & pi. xxvii. 



Overthrust Torridonian of I. of Rum 



(&the assoc. gneisses), 189-216 figs. 



& pi. xiv (geol. map). 

 Ovifak (Greenland), iron-ore of, 61 , 62, 



63. 

 Oxford Clay, carbon & nitrogen in, 



138, 139 ; disturbances in, 373. 



Pachytesta, viii. 

 PalcBonvutela Keyserlingi, 287. 



sp. (Rhodesia), 287. 



Palaeontology, position of, among 



sciences, lxxvi-lxxvii. 

 Palagonite - formation of Iceland, 



shelly Boulder-Clay in, 356-61 figs. 

 Palapye Kopjes (Rhodesia), 273. 

 Pankhurst, E. A., quoted, 437. 

 Parkinson, J., the Geology of the 



Tintagel & Davidstow District (N. 



Cornwall), 408-28 figs. & pi. xxv 



(geol. map) ; (& T. G. Bonney), on 



Primary & Secondary Devitrification 



in Glassy Igneous Rocks, 429-34, 



443 & pi. xxvi (microscop. sects.). 

 Parsley Hay (Derby), dolomitized 



Carb. Limest. of, 344. 

 Passage-beds, supposed necessity for, 



249. 

 Patagonia (S. Amer.), geology of, 160- 



79 figs. & pi. xiii (map). 

 Patagonian Beds, 161-63. 

 Patchy devitrification, 434, 441-42. 

 Pear-like shape originally possessed 



by the earth, 186, 187, 188. 

 Peat, false, of London area, 89 ; peat, 



composit. of, at var. depths, 136. 

 Pebble-bed ( Tehuelche) of Patagonia, 



167-73; (Triassic) of S. Devon & 



Midlands, 311-33 w. map & sect. 

 Pebbly Carb. Limest. of Cold Eaton, 



345 & pi. xxiii (microscop. sects.). 

 Peel (I. of Man), Keisley-Limest. 



pebbles in red sandstones of, 307- 



310. 

 Pegmatitic structure, orig. of, 436-37. 

 Pencil e Hill (Lanes), Dictyonema (?) 



from, xcix. 

 Pendleside Series of Hodder Place, 



Soleuomorpha from, 334-35. 

 Penning, W. H., obituary of, lx-ixi ; 



quoted, 362, 365, 367, 372. 

 Penpethy Beds, 413, 424-25. 

 Peridotite-intrusions in I. of Rum. 



191, 203. 

 Perlitic assoc. w. rectilinear structure, 



440. 

 Permo-Carboniferous (?) age of Sisi 



Shales, 289. 

 Perranporth (Cornwall), geol. map of, 



144. 



