364 



INDEX. 



Diluvio glacial phenomena in Snowdo- 

 nia, 51. 



Distribution of Rudista, 135. 



Division of Ammonites into groups, 137. 



D'Orbigny, zoological, geological, and 

 fireologico-geographical considerations on 

 Ammonites, 38, 68, 99, 135, 277, 309, 333. 

 — zoological and geological considera- 

 tions on Rudista, 132. 



Dudley and Midland Counties Geological 

 Society, 58, 123. 



Dumbleton Hill, (section of strata) 21. 



Durocher on glacial phenomena in N. of 

 Europe, 89. 



Duval Jouve — sur les Belemnites des 

 Basses Alpes, 30. 



E. 



Earths, (test of) before the blowpipe, 165. 



Earth- slips on the Brighton and Croydon 

 Railways, 111. 



Earthquakes in Cornwall, 167. — In Perth- 

 shire, 243. — Report of Committee of the 

 British Association on, 243. — At Ter- 

 ceii-a, 45. — Coblentz, 354. 



Everest on the Geology of the Himelaya 

 Mountains, 46. 



F. 



Ferric acid, 166. 



Fishes (fossil) of Devonian system, 257. ~ 

 Of Manchester coal-field, 56. 



Fossil plants — of Carboniferous strata 

 between the Saar and Rhine, 64. — In 

 plastic clay at Bournemouth, 121. 



Fossil Blammalia, (Prof. Owen on) 283. 



Form of Septa in Ammonites, 100. 



France, (geology of) 86. — Tertiary forma- 

 tions of, 87.— Secondai-y, 87. — Carboni- 

 ferous and mountain limestone, 88. — 

 older formations, 88. 



Freezing Cavern near Orenburg, 146. 



Functions of Septa in Ammonites, 99 



G. 



Gayton Thorpe, (bones of ox in clay at) 

 36. 



Gault, (Ammonites peculiar to) 312. 

 Geology of France, 86.— Of South Austra- 

 lia, 117. 



Geological Society of London, 20, 45, 120, 

 147, 168, 211,229.— Manchester, 27, 56, 

 85, 117, 151, 183, 208.— Dudley, &c„ 58, 

 123. 



Geologico-geographical considerations on 

 Ammonites, 333. 



Glacial theory, summary, 353, 



Glaciers, (periodical summary on) 3. — 

 Their nature, occurrence, situation, 

 mode of action, temperature, and cir- 

 cumstances under which they exist, 4, 

 5. — Changes, descent, gravel and dirt 

 beds, boulder stones, moraines, needles 

 and chasms, hollows, lakes, torrents, 

 striated rocks, 7, 8, 9, 10. — Agassiz's 

 theory of glaciers, 11. — Internal tem- 

 perature, 148. — Mode of formation, 248. 

 — Diluvio-glacial phenomena in Snowdo- 

 nia, 51. — In the North of Europe, 89. 



Glyptodon, 221. 



Gordon on melting points of metals, S3. 

 Greensand, (ammonites peculiar to) 314. 



Groups of Ammonites, 137. 



Amalthei, 139. 



Arietes, 1.37. 



■ Armati, 142. 



• Angulicostati, 142. 



Clypeiformi, 138. 



Compressi, 141. 



Coronarii, 145. 



Cristati, 137. 



Dentati, 140. 



Falciferi, 137. 



• Fimbriati, 145. 



Flexuosi, 141. 



Heterophylli, 143. 



L;gaM, 144. 



Macrocephali, 145. 



Ornati, 141. 



Planulati, 144. 



Pulchelli, 139. 



Rhotomagenses, 139. 



Tuberculati, 138. 



H. 



Harkness, on the influence of temperature 

 on the waters of the ocean, 183, 208. 



Hawkshaw, on fossil footsteps in New Red 

 Sandstone, 298. 



Herschel (Sir John) on some phenomena of 

 glaciers, 148. 



High temperature of well-water at Del- 

 hi, 212. 



Himalaya Mountains, (Geology of) 46. 

 Human skull transformed into Lignite, 221. 

 Hunt, on desti-uction of Terceira by earth- 

 quake, 45. 



I. 



Ick, on superficial deposits near Birming- 

 ham, 211. 



India, (Magnesite formation of) 166. — 



Chromate of Iron in, 167. 

 Insects in Lias, (fossil) 296. 

 Internal characters of Ammonites, 99. 

 Iron (chromate of) in India, 167. 

 Irregular septa in Ammonites, 107. 



K. 



Keyserling, &c. on Central and Southern 

 Russia, 177. — On the geology of the 

 Ural mountains, 229. 



Koch on the Tetracaulodon, 175. 



Lakes, (American) — Schoolcraft, on the 



action of the north, 287. 

 Leviathan Missourii, (notice of) 34. — 



Owen's report on the, 123.— Koch on 



the peculiarities of the, 175. 

 Lias beds near Cheltenham, (notice of 



the; 14. 



Lignite, (human skull transformed into) 

 221. 



Lobes in Ammonites, number, &c.. 105. 



Logan on Coalfields of Peusylvania and 

 Nova-Scotia, 169. 



Lophiodon (tooth of) in the conglomerate 

 below the London Clay, 66. 



Lyell, (C.) on the coal measures of Pensyl- 

 vania, 25.— On the recession of the falls 

 of Niagara, 122. On iLe tertiary forma- 

 tions in Virginia, 213. 



