INDEX. 593 



Red sandstone formation, country occupied by, south Rhenish provinces, MM. d'Archiac and de Verneuil 



of the Tagus, 118. on the fossils of the older deposits in the, 303. 



mineral contents of, 119. ■ general sur- 



organic remains found vey of the fauna, 303. 



in, 120. description 



Refrath, section of the Devonian strata of, 243. of the fossils, 336. 



Regrath, change in the carboniferous limestone in tabular list 



the valley of, 231. of the organic remains of the Devonian system in 



Reloncavi Sound, notice of rocks reported to exist the, together with the species of the Silurian and 



near, 424. carboniferous systems, 377. 



Reptiles, fossil, see Chelone, Labyrinthodon, Palseo- — — — J. de Carle Sowerby, descrip- 



phis toliapicus, Raphiosaurus. tion of Silurian fossils from the, 408. 



Rhenish provinces. Prof. Sedgwick and Mr. Mur- Rhodes, notices respecting the structure of the island 



chison on the distribution and classification of the of. 9. 



Palaeozoic deposits of the, 221. of the blue marble on the east 



• objects of the authors in making coast, 9. 



the survey, 222. of the scaglia of, 12. 



summary of results arrived at, ■ of the tertiary marine deposits of, 



from an examination of the provinces on the right 14 and note. 



bank of the Rhine, 324. Rhyndacus, account of a modern lacustrine deposit 



description of the older forma- in the valley of the, 21. 



tions on the right bank, 228. greenstone, south side of 



carboniferous the, 23. 



system, 228. Richardson, W. Esq., observations on the locality of 

 inferior groups, the Hyracotherium, 211. 



235. Ritri, account of the trachyte of, 26. 

 •— . Devonian Rosstrappe, section from the Brocken to the, 292. 



rocks, 235. comparison of, with sections in West- 



Silurian phaiia and Nassau, 293. 



rocks, 252. Runderoth, notice of eruptive rocks, &c. near, 264. 

 — eruptive rocks, Rydon Hill, near Newton, notice of the carbona- 



263. ceous deposits of, 457. 

 remarks on apparent anomalies 



in the structure of the, 259. 



■ all intervening strata 



between the recent tertiary formations and the Saal, notice of strata along the line of the, 296. 

 Palaeozoic rocks wanting in the mountainous re- Saalfield, notice of strata composing a cliff two miles 

 gions of, 266. above, 296. 

 ■ on the left bank of between, and Coburg, 297. 



the Rhine, 267. St. Lawrence, list of shells from the Gulf of, 138. 

 -^ carboniferous rocks remarks respecting species common to 



of Belgium, 267. the, and the coasts of Europe, 139. 

 rocks composing the on the transport of boulders by 



Eifel, &c., 276. ice in the, 140. 

 older slates of the St. Sebastian's Bay, east coast of Tierra del Fuego, 



Moselle and Rhine, the formations of the Hunds- remarks on the erratic boulders of, 419. 



riick and Taunus, 280. on the configuration of the land, 



