INDEX. 581 



Erratic boulders, on the probable direction of their Fault, description of the great, called the Horse, in 



transport in Tierra del Fuego and Chiloe, 419, 425. the Forest of Dean, 215. 



account of, on the north and east Faults, account of, in the south-east of Devonshire, 



coasts of Chiloe, 424. 482. 



probable relative age of the boulder Faults and dislocations, account of, near Cintra, 128. 



formation of Chiloe, 426. effects of, 



boulder on the different formations, 128. 



formation of Tierra del Fuego, 426. — between Palmella 



on the transportal of, by ice, 427. and Cape Espichel, 129. 



observations on the range of, with ■ notices of, in the south-east 



reference to the tropics, 427. of Devonshire, 482. 

 being Ffernant Dingle, notice of Silurian rocks in, 196. 



probably confined to the distribution of till, 427. Fichtelgebirge, description of the stratified rocks ex- 

 Eruptive rocks, description of, in parts of the districts tending from the Thuringerwald through Upper 



on the right bank of the Rhine, 263. Franconia to the, 296. 



Erythrae, account of the formations around, 8. Fire-clay, account of, in South Wales, 49. 



Esh^n, notice of trappean rocks near, 23. Fishes, fossil, list of Devonian, by Sir P. Egerton, 



Espichel limestone, description of, in the neighbour- 380. 



hood of Lisbon, 120. recent, remarks on the remains of Mediter- 



notices of the principal tracts ranean species being confined to the south-west of 



occupied by, 120 et seq. English Channel, 435. 

 list of organic remains found in. Fissures, remarks on the ossiferous, of Devonshire, 



121. 443. 



Estoril, tepid springs of, noticed, 120. observations by the Rev. W. B. Clarke on 



Estuaries, account of raised, in the south-east of De- the phsenoniena of transverse, and ravines being the 



vonshire, 440. mechanical effect of elevation, 566. 



Estuary deposits, account of, in the south-east of Flints, chalk, arguments adduced in support of their 



Devonshire, 434. organic origin, 181. 



Euomphalus, distribution of species in Palaeozoic — — from traces of reticulated 



rocks, 323. structure, 1 82 et seq. 

 descriptions of new species from the from the occurrence of 



Rhenish provinces, 362. spiculae and foraminiferae, 182 et seq. 



Exe, notice of raised estuary deposits in the valley from silicified Echinidae, 



of the, 440. 186. 

 the course of the, traverses a north and south — ; from the flints enclosing 



fault, 486. nuclei of sponges or corals, 187. 



Exeter, account of the igneous rocks in the neigh- difference in the organic contents of 



bourhood of, 474. perpendicular or oblique veins of flints and of ho- 



remarks on the age of, 474. rizontal layers, 1 85. 



Elizabeth Island, notice of the cliffs bordering, and Flint, deposition of, not due to siliceous spiculae, but 

 of the boulders at their feet, 418. to animal matter, 192. 



opinion supported by reference 



F- to the siliceous corals of the mountain limestone, 



Falkland Island, no erratic boulders noticed on East, &c. and pyritical organic remains, 193. 



by Mr. Darwin, 427 note. Flotzlehrer sandstone, shown to belong to the lower 



no elevated marine shells on, 427 coal-measures, 229. 



note. Fluss-stein, account of, in Nassau, 246. 



VOL. VI. — SECOND SERIES. 4f 



