ALPHABETICAL INDEX 



TO THE 



PROCEEDINGS OF THE GEOLOGICAL SOCIETY. 



[The fossils referred to are described ; and those of which the names are printed 

 in italics are also figured.] 



Abnormal conditions of Secondary de- 

 posits, Mr. C. Moore on, 449, 481. 



Actaeonina Jenkinsiana, 154. 



Morrisiana, 153. 



• Sharpeana, 154. 



Adventure and Medina Banks, chart 

 showing the, 293. 



Africa and Sicily, former connexion 

 of, 293. 



Africa, Prof. T, H. Huxley on Dino- 

 saurian Reptiles from South, 1. 



Africa, Mr. R. Tate on Secondary fos- 

 sils from South, 139. 



Alaria coronata, 152. 



fusiformis, 542. 



rudis, 542. 



Alps and the Himalayas, Mr. H. B. 

 Medhcott on the, 322, 



Amberleya alpina, 544. 



apicalis, 555. 



grandis, 555. 



turrita, 556. 



Ammonites angulatus in Great Britain, 

 zone of, 305; in Ireland, zone of, 

 302, 306. 



Ammonites Bucklandi in Ireland, zone 

 of, 303 ; in Somersetshire, zone of, 

 497 ; in South Wales, zone of, 531. 



Ammonites planorbis in Ireland, zone 

 of, 299; in Somersetshire, zone of, 

 467. 



Ammonites plicomphalus, 251. 



suhanceps, 150. 



Ampullaria(?) ignobilis, 153. 



Analyses of chalk and chalk -marl, 389 ; 

 clays, 390 ; consolidated blocks from 

 the Drift, 113 ; rocks from the Mal- 

 vern Hills, 353 ; variegated strata, 

 Mr. G. Maw on, 114. 



vol/. XXIII. 



Andes, Mr. W. Wheelwright on the 



discovery of coal on the eastern slope 



of the, 197. 

 Anniversary Address of the President, 



xxix-kxiv. See also Smyth, W. W., 



Esq. 

 Annual Report, i. 

 Area {CuculIcBal) Jonesi, 16L 

 Argyll, Duke of, on a Posttertiary 



Lignite, or Peat-Bed, in the district 



of Kintyre, Argyllshire (Abstract), 



196. 

 Ash, analyses of volcanic, 353. 

 Asplenites lobata, 146. 

 Astarte Longlandsiana, 158. 



Finchiniana, 157. 



Aulophyllum, Dr. P. Martin Duncan 



and Mr. James Thomson on, 327. 

 Aulophyllum Edwardsi, 329. 

 Australia, Rev. W. B. Clarke on marine 



fossiliferous Secondary formations 



in, 7. 

 Avicula nuda, 540. 

 Award of the balance of the Wollaston 



Donation-fund, xxviii; Medal, xxvii. 

 Aylesbury, section across the head of 



the vale of, 402. 

 Baggy Point, 604. 



Barbary, Mr. G. B. Stacey on the geo- 

 logy of Benghazi, 384. 

 Barle, valley of the, 589. 

 Barnstaple, 601. 



Basaltic dyke in the Mendip Hills, 451. 

 Batheaston, section at, 458. 

 Bath, Liassic deposits near, 495. 

 Bears, Mr. G. Busk on the dentition of 



fossil, 342. 

 Beaufort beds. South Africa, 143. 

 Bedminster, section at, 500. 



