333 



Riv 



■& ostrac. fr., xl. 765-777 & pi. xxxiv. ; 



calcisponges fr., xl. 778-783 & pi. xxxv. ; 



polyzoa fr., xl. 784-794 figs. ; Neocom. 



limest. fr., 1. 685, 686 fig.; R. Park, 



section across Thames Valley to Acton, 



xxviii. 459. 

 Richmond (Virginia), James R. coalfield 



nr., hi. 261-280 & pis. viii.-ix.; foss. 



plants fr. same, iii. 281-288 & pis. x.-xi. 

 Richmond (Yorks), mammalif. Pleistoc. (?) 



nr., xxi. 493-495. 

 Richtee, P., *Devon. Entomostraca, 



xxvi. (Part 2) 9. 

 Richthopen, F. von, *Trias of Vorarl- 



berg, xiv. (Part 2) 22. 

 , *Silica in Igneous Rocks, xv. 



(Part 2) 15. 

 ,*Tert. Erupt. Rocks of Hungary 



& Transylvania, xvi. (Part 2) 33-35. 

 , *Occurr. of Nummul. Format. 



in Japan & Philippine Is., xix. (Part 2) 



32. 

 , elected For. Corr., xxxix. Proc. 



75; elected For. Mem., xliv. Proc. 5; 



Wollaston Medal awarded to, xlviii. 



Proc. 28. 

 Richthofen's succession (Alpine Trias), 



xlix. 11, 25. 

 Richthofen Riff (S. Tyrol), xlix. 20, 74. 

 Ricketts, C, Erratics in Boulder Clay 



of Cheshire, etc. & Condits. of Climate 



denoted by them, xli. 591-598 figs. 

 Sickling (Essex), drift at, xlvi. 334. 

 Rickman, C, Strata exp. in Sewer Excavs. 



at Dulwich [abs.], xvii. 6. 

 Ridge (Wilts), section descr., 1. 51. 

 Ridge and furrow, stratigr. struct., v. 270. 

 Ridgway (Dorset) , geol. of, iv. 245-256, v. 



317-319 ; sections, viii. 115, 116 ; insect- 

 remains fr., x. 384 & pis. xvi., xviii.; 



Purbeck ostrac. fr., xli. 323 et seqq. 

 Ridgway Range, sub-escarpm. of, viii. 



110-116 w. map. 

 Riebeckite in granophyre of Skye, 1. 219. 

 Riet River (Or. Free State) & Modder R. 



jnnct., xxx. pi. xxxvi (map); geol. of 



neighb. country, xxx. 582 et seqq. 

 Riffelberg (Switzerland), xlix. 99. 

 Rigaux, E., Lyell Fund Award to, xxxix. 



Proc. 36; elected For. Corr., 1. Proc. 1. 

 Rigghause End (Cumberland) , felstone of, 



xxxi. 412 & pi. xviii. 

 Right's River (Nova Scotia), section, i. 31. 

 Rigi (Switzerland), section to Achsenstein, 



v. 195; Nagelfluh of, v. 229, 241; 



*Eoc, etc. of district, xxix. (Part 2) 5. 

 Rill (Lizard), serpentine, etc. of, xxxiii. 



889 ; microsc. char, of same, xxxiii. 918. 

 Rill-marks, as disting. fr. animal- or plant- 

 impressions, xlvi. 614 w. figs. See also 



Ripple-marks. 

 Rilly (Champagne), Tert. sands, etc. of, x. 



p. Iv ; calcar. marls of, xi. pp. lxxv, 213. 

 Simula elegans, sp. nov., xxiii. 551 &pl.xv. 



Hasina, xxiii. 551 & pi. xv. 



Ringborough (Yorks), section at, xxxviii. 



pi. xxvi. 

 Ringerigge (Norway), section, i. 469. 



Ringler-Thomson, T. G., Posit, in wh. 

 Shells are found in Red Crag, v. 353-354. 



Ringstead Bay (Dorset), coleopt. elytron 

 fr. Kim. Clay of, ix. 51 ; K. CI. at, xxxi. 

 200, 212, 215; Corall. at, xxxiii. 271, 

 272 ; Purbeck ostrac. fr., xli. 326. 



Rio Barranca (Costa Rica), xxxviii. 329; 

 felspathic tuff fr. nr., xxxviii. 339. 



Rio Grande (Costa Rica), coal-deposits nr., 

 xxxviii. 331, 332. 



Rio Maior (Portugal) , section to Candieiros, 

 vi. 158. 



Rio Tinto (Huelva), plan of part of district, 

 & section, xxxvii. 3; chem. anal, of bog 

 iron-ore & occurr. of recent plants in, 

 xxxvii. 4; R. T. Mines, geol. of, xli. 

 245-265 figs. & pi. vi (map & sections). 



Ripple-marks, format, of, iv. p. lxxv, ix. 

 213 ; in Silur. & other sandst., ix. 183, 

 xii. 241, xiv. 118, xix. 402 fig. ; in Cambr. 

 of Longmynd, xii. 250 & pi. iv., xiii. 201 

 & pi. v. ; so-called, on lava, xvi. 246 

 fig. ; contorted, in mica-schist, xix. 405 ; 

 in Red Crag, xxvii. 327 fig. ; simulated, 

 in S. Devon slaty rocks, xl. 20 ; r.-m. 

 in Shropshire & Cheshire drifts, xl. 

 267-269 figs. ; combin. w. worm-trails 

 in Potsdam Sandst., xlvi. 611 fig. 



Risborough (Bucks), section nr., xxi. 399. 



Risell (Yorks) section, ii. 120. 



Riskinhope Burn (Selkirk), Birkhill Beds 

 in, xxxiv. 267; do. & other beds of 

 Moffat Series, xxxiv. 272, 273 section. 



Pissoa acuticarina, sp. nov., xxxvi. 230 & 

 pi. ix. 



{Hydrobia) conulus, vii. 110 & pi. v. 



Leighi, xvii. 300 & pi. vii. 



subcylindrata, sp. nov., xxxi. 52. 



subperforata , sp.nov., xl. 320 &pl.xv. 



Wyville-Thomsoni, sp. nov., xl. 321 



& pi. xv. 



Pissoina australis, sp. nov., xxvi. 257 & 

 pi. x. 



Ritom, Lake (Switzerland), section across, 

 xlvi. 200 ; do. S.E. of, xlvi. 206, 207. 



Rittonside (Dumfries), Moffat Series at, 

 xxxiv. 291. 



Rivals Mt. (N. Wales), section on, xxxix. 

 115. 



Rivers, subterr., in Clee Hills, xviii. 96; 

 oscillat. of r., xix. 322 ; elev. of banks of, 

 xix. 324 ; recess, of junct. of tributary 

 w. main streams, xix. 342 ; diagr.- 

 section across bed of, xix. 325 ; action 

 modifying channels, xxi. 466; do. in 

 relat. to deposit. & denud., xxix. 469 fig., 

 xxxii. Proc. 4-9; do. in India, xxxv. 

 Ill; r. & plains of N. India, recent 

 geol. changes in, xxviii. 186-200 figs; 

 r.-courses of Engl. & Wales, xxviii. 148- 

 160 w. map & sections. 



River-deposits in Britain, late Pleistoc. 

 mammal, fr., w. list, xxviii. 411. 



River-drift, mammal, ident. w. those of 

 caves, xxv. 206. See also Drifts. 



River-gravels, ancient, in Cambridge Val- 

 ley, xxxii. 199 et seqq. ; do. of Amazon, 

 xxxv. 763-777 figs. & pi. xxxviii (map) ; 



