INDEX. 
671 
Conformable junction of the siliceous Jurassic grits of Tata- 
rova near Moscow with the Oxfordian shales, 239. 
' ’ " °f Permian and carboniferous rocks in the 
Ural, 469. 
of Permian limestone and recent sea 
bottoms, 331. 
Conglomerate, forming a passage bed between the Devonian and 
carboniferous series, 94. 
- (Devonian) on the western slope of Akri-tau, 460. 
— (carboniferous) at the mouth of the Usva, 127. 
~~ °f the millstone grit period between Bisserskaya 
and Klinova (west flank of the Ural), 128. 
, red, of the Permian series, 1 45. 
TTT T- ^ >erm ’ an I ,er >od derived from the old rocks 
of the Ural, 14b. 
‘ > coarsc (Permian), with fossil wood and copper, 
in the neighbourhood of Troitsk, 155. 
■ ~~ (Permian) formed by the degradation of the 
older mountains cover the country between Okansk and 
Malmisli, 160. 
, Jurassic, restiug on Permian beds, 248. 
— j^ 11 a ugite on the eastern flank of the Ural. 438. 
Coniferm, { ossil remains of, in the siliceous grits of Moscow, 
&c., 240. 
Conrad, Mr., his account of American Silurian Mollusea, 4*. 
Consolidation of the rocks, has not been effected in most parts 
of Russia, passim and 584. 
Continent., ancient, to the east of the Ural mountains, 474. 
Contorted state of the carboniferous strata in the valley of the 
Alkovaya (Donetz), 107. 
Contortions and flexures of the sandstone in the carboniferous 
system of the Donetz, 93. 
of the carboniferous strata between the Kalmiuss 
and the Kriuka, 99. 
of the carboniferous and Devonian rocks on the 
banks of the Issetz and Tchussovaya, 125, 363, 385 et seq. 
Copper grits near Perm, 144. 
Copper grits and sandstones between the Ik and Bugidma, 156. 
Copper, green carbonate of, worked as an ore in the copper 
grits of the Permian system, 144. 
mines of Nijny Tagilsk, North Ural, and great malachite 
of, 372. 
of Turyinsk, North Ural, 398. 
Copper ore, its importance in the Permian system, 138. 
1 its intimate association with fossil vegetable re- 
mains (Permian), 154. 
(Permian), its derivation, western limits and great 
extent, 156, 168 et seq. 
occupies a region west of the Ural mountains, 142 
et seq. 
> formed recently in a peat-bog in North Wales, 
169. 
, its presence in stratified deposits explained, 169. 
°f the Permian rocks, epoch when formed, 473. 
Copper sands and marls, origin and limits of, 168. 
Coral rag, Jevitze (Poland) and sandstones of the age of, 242. 
, its English fossils compared with those of the upper 
Jurassic limestones of Russia and Cracow in Poland, 253. 
, identity of the Jurassic limestones of the Donetz 
with, 253. 
Corals, palaeozoic, of Russia, described by Mr. Lonsdale, 591. 
of the lower Silurian rocks of Russia, 38*. 
of the Russian Devonian rocks, 64. 
of the Russian carboniferous series, 135. 
of the Russian Permian system, their peculiar character 
and difference from the corals of other periods, 206, 216. 
, tabular list of, 221. 
of the Russiau Jurassic series in the coral rag, 253. 
Cornish granite, its resemblance to that of Frederieksvarn, 14*. 
Cornstone, Permian rock resembling, between Sterlitamak and 
Biclebei, 151. 
Cornwall, discovery of some Silurian fossils in, 7. 
— , analogy of part of Norway to, 14*. 
Cossatclii-datchi, on the east flank of the Ural, carboniferous 
limestone of, 438. 
, auriferous detritus of, 491. 
Cotta, M., his table of succession, 201. 
Courland, Devonian rocks in, 50. 
and Livonia, lithological character of Devonian rocks 
of, 52. 
“ Crag and tail” of Scotch drift, 549. 
Crag of Suffolk, resemblance of the steppe limestone to, 299. 
Cracow, the rocks on which that citv is built are of the age of 
the coral rag and calcareous grit of Oxford, 264. 
, Scandinavian erratic blocks near, 525. 
Crasnoi-glasuova, east of Ekaterinburg, dome of crystalline 
Silurian limestone at, 364. 
, tchornozem or black earth of, 422. 
Crest of the Ural mountains or Ural-tau, 343, 360, 369, 381, 
391,398,400,434,438,455. 
Cretaceous system of Eastern Germany compared with that of 
England and France, 261. 
of Poland and the Carpathians described, 263. 
— , collection of fossils from, in the 
Royal Museum of Warsaw, 263. 
of Russia, its range and general aspect , 8*, 
259 et seq. 
, the pleta or orthoceratite lime- 
stone of St. Petersburgh erroneously referred to in conse- 
quence of mineral resemblance, 28. 
, chalk of the country of the Do- 
netz, 265. 
~ ; represented by argillaceous and 
siliceous masses in the governments of Kharkofaiul Kursk, 
267. 
on the Don, 270. 
, the probahle extension of in 
Russia, northwards from the Don, 271. 
> on the banks of the river Ural, 
272. 
, on the Volga below Simbirsk, 272. 
, views of M. Jasikoff respecting 
the geological succession near Simbirsk, 273. 
> relations of, to the tertiary strata 
exhibited, 277. 
, comparison of, with the creta- 
ceous rocks of other countries, 279. 
Crimaea, reappearance of lower Jurassic rocks of Russia in the, 
248. 
, cretaceous and Neocomian, or lower greensand rocks 
of, 280. 
, older tertiaries of, 284. 
, its eastern tract of the Aralo-Caspian period, 298. 
, upper shelly strata of the, referred to the Aralo-Caspian 
series, 301. 
Crinoidea of the lower Silurian strata of Russia, 38. 
, great rarity of, in the Permian strata, only one spe- 
cies being known, 206. 
Crystalline rocks of Scandinavia, their vast extent, 10*. 
of Norway fonning the flanks of troughs con- 
taining palamzoic strata, 11*. 
, their relation to the Silurian rocks in Sweden, 
15. 
of Fiuland, Lapland and Northern Russia, 22. 
of the southern steppes of Russia, their ex- 
tent, 90. 
stratified on the banks of the Voltchia and 
Kalmiuss, 91. 
in the axis of the Ural, 359. 
°f the eastern flank of the Ural south of Eka- 
terinburg, 421 . 
of the Urenga, 428. 
°f the Kirghis frontier, MM. Hoffmann and 
Helmersen’s work on this subject referred to, 445. 
— of the Guberlinski hills, 448. 
of the Irendvk ridge, 453. 
