( 573 ) 



INDEX, 



Abereiddy Bay, notice of the strata of, 558. 

 Abergele, notice of Silurian rocks west of, 195. 

 Adala, notice of a hill of trachyte near, 26. 

 account of a stream of lava in the plain of, 



33. 

 Aden, Mr. Burr, on the geology of, 499. 

 Aggerthal, notices of the strata along the line of the, 



261. 

 eruptive rocks near the, 



264. 

 Aidinjik, notice of the formations near to, 6. 

 Aineh-chai, notice of beds on the banks of the, 11. 



. near the, 19. 



Alabama, account of the remains of the Basilosaurus 



or Zeuglodon found in the tertiary deposits of, 67. 

 Alcantara, section of the beds of Hippurite limestone 



in the valley of, 115. 

 Alluvia, remarks on the ancient, of the south-east of 



Devonshire, 438. 

 Alluvial deposits, notices of, in Western Asia Minor, 



21. 

 Almada tertiary formation, description of, 109. 

 sectional list of beds be- 



longing to, 110. 



subdivisions of, 110. 

 range of, south of the 



Tagus, 111. 



north of the 



Tagus, 111. 



list of fossils found in. 



113. 



comparison 



of, with the organic remains of Alhama, Baza, 

 &c., 113. 



VOL. VI. SECOND SERIES. 4 E 



Alum Bay, account of the variegated sands and clays 

 in, 171. 



Annelida, notice on the rare occurrence of, in Palae- 

 ozoic rocks, 313. 



Anoplotherium, Mr. Owen, description of some fossil 

 remains of, from the Isle of Wight, 41. 



list of remains of, found by the Rev. 



D. Fox, 44. 



Apollonia Lake, notice of the limestone on the south 

 shore, 10. 



trachytic rocks, north 



side of, 23. 



Aptychus, description of new species from the De- 

 vonian beds of the Eifel, 343. 



Area, new species of, from PafFrath, described, 373. 



Arfurth, section of Devonian strata near, 251. 



Armadillo, comparisons of, with the Megatherium, 

 87 et seq. 



remarks on the structure of the pelvis, 



&c., with reference to the dermal armour, 98. 



Arnsberg, section of country near, described, 233. 



flexures in range of limestone near, no- 

 ticed, 234. 



Ashburton limestone, remarks on the carbonaceous 

 nature of, 461. 



— - account of, 469. 



Asia Minor, Mr. Hamilton and Mr. Strickland on 

 the geology of the western part of, 1 . 



physical structure of, 3. 



. classification of the rocks composing 



the western portion of, 4. 



description of the sedimentary rocks, 5. 



igneous rocks, 22. 



general conclusions, 37- 



comparison of the formations with those 



in North-western Europe, 38. 



