﻿Vol. 6 1.] 



GENERAL INDEX. 



r 21 



Circulus, use of terra, lxxii-lxxiv, 



183, 306-307. 

 Clapton-in-Gordano (Somerset), Carb. 



Limest. of, 231-32. 

 Classification of sedimentary rocks, 



lxi-lxxxvi ; see also Correlation. 

 Clatk?°attts-subzone in Bristol area, 



191-92, 206, 215, 220, 227, 229, 



230, 232, 233 ; faunal characters of, 



260. 

 Cleavage of rocks in Arenig district, 



632-33. 

 Clee-Hill area (Salop), Carb. Limest. 



correlated w. that of Bristol, 252- 



54. 

 Cleistopora in Carb. Limest., range of, 



aff. geometrica, 268. 



Cleistopora-zone in Bristol area, 189- 

 90, 201, 204-205, 214-15, 220, 227, 

 230 ; faunal characters of, 259. 



Clevedon area (Somerset), Carb. 

 Limest. of, 225-28. 



Clevedonian defined, 261. 



Climatic changes in geological time, 

 lxxviii-lxxix. 



Cliothyris Iioyssii, 297. 



glabrist'ria & mut., 297 fig., 298. 



Clisiophyllids in Carb. Limest., range 

 of, 244; diagnosis of, 280-81 ; evo- 

 lutionary history of, 286-87. 



Clisiophyllum (Carciiiophyllum) 9, 285 

 & pi. xxiv. 



Cloudy matter in dolomite-crystals, 

 129. 



Clypeaster alius var. porlentosus, v. 



Coal-Measures of N. Staffs., marine 

 beds of, 495-547 figs. & pis. xxxiv- 

 xxxvi ; C.-M. (Middle) of S. Yorks. 

 wash-outs in, 339-44 w. map & 

 sects. ; C.-M. (Upper), divisions & 

 correlation, &c. of, 308-23. 



Coalbrookdale Coal-Measures, biblio- 

 graphy of marine bands in, 525 ; 

 list of marine fossils from, 543- 

 44. 



Coalescence of the two parts of twin- 

 eaithquakes, 21-22. 



Codrington (Gloucest), White Lias, 

 &c. of, 419. 



Coedyrallt Group, 314. 



Cwlonautilus cf. subsulcatus, 542. 



Cogau Hall (Glamorgan), Rhaetic 

 near, 397. 



Col Crepa (Tyrol), chem. anals. of 

 dolomites from, 106 ; mineral, 

 structure of do., 120-21. 



Colchester earthquakes of April 22nd, 

 1884, 18, 22, 29 ; map of. 30. 



Coldknap (Glamorgan). Rha^tic, &c. 

 at, 397-98. 



Columnar basaltic rock of Strumble 



Head, &c, 582, 583. 

 Combe, Mt. (Congo Free State), rocks 



from, 658, 659. 

 Conglomerates (Rhietic) of Tregyff, 



4 »2; Glacial, in Transvaal, 679- 



89 ; limonitio, in Congo Free State, 



645 et seqg., 649-50. 

 Congo Free State, geology & petrology 



of N.E. Territories, 641-66 figs. & 



pis. xlii-xliv. 

 Contemporaneous erosion of Lias, 



450 fig., 452 ; igneous rocks of 



Weston-super-Mare district, 553, 



558, 561 ; do. of N.Pembrokeshire, 



580-81 ; vole, materials, accumulat. 



of, lxviii-ixix. 

 Conies (Eocene), fr. Somaliland, 166. 

 Cora-subzone in Bristol area, 195-96; 



in Weston-super-Mare district, 549 



et seqq. 

 Corals, ranges of Carb. Limest. in 



Bristol area, 243 et seqq., w. range- 

 diagram, pi. xxviii ; as zonal indices 



ibid., 184 et seqq. ; in Tyrolese 



dolomites, 120 et seqq. ; list of, fr. 



Somaliland, 178. 

 Coral-reef theory of origin of Tyrolese 



dolomites, 98 et seqq. 

 Corny Hill (Durham), sect, to West 



Boldon, 91. 

 Correlation of Coal - Measures by 



means of marine horizons, 519- 

 . 22 w. vert, sects, on p. 518 ; by 



means of plant- remains, 308-23. 

 Cortina (Tyrol), rock-succession at, 



101 ; dolomites from, chem. anals. 



of, 106-107; origin of do., 113; 



mineral, structure of do., 120-21. 

 Cotham Marble, equivalent, at Bishton, 



&c, 377 et seqq.. 

 Council, report of, ix-xi ; Council & 



Officers elected, xxii. 

 Cowbridge (Glamorgan), Rhsetic betw. 



Pyle and, 406-10 ; betw. Barry and, 



397-406. 

 Crabtree Coal, marine horizons near, 



512. 

 Cretaceous & Eocene of Nile Valley, 



667-78 w. map & sect. ; see also 



Chalk. 

 Crick. G. C, 474, 493. 

 Cristallo, Mte. (Tyrol), chem. anal, of 



dolomite from, 107 ; mineral, struc- 

 ture of do., 122. 

 Cromer Forest-Bed, flint-scraper from, 



ii. 

 Cromhall district (Gloucest.), Carb. 



Limest. in, 239-40. 

 Cross Farm (Glamorgan), Rhaetic, &c, 



at, 395-97. 



