GENERAL INDEX 



TO 



THE QUARTERLY JOURNAL 



AND 



PROCEEDINGS OF THE GEOLOaiCAL SOCIETY. 



Abergorky Seam (Clydach Vale), 

 plant-remains from, 48-49 fig"., 56. 



Acceleration of development in gas- 

 tropods, 305. 



Agglomerates, porphyritic, in Pern, 

 259. 



Alapampa ridge (Peru), 261. 



Albian in Peru, 265-71. 



Alethopteris in E. Glamorgan Coal- 

 Measures, 60. 



Algge, calcareous, as rock-builders, 

 216, 217, 238 & pis. viii, ix, x, 244- 

 45. 



Amphibolites of S. Eyre Peninsula, 

 81-84 figs., 98-116. 



Analyses (chemical) of E. Glamorgan 

 coal and coal-pebbles, 69 ; of am- 

 phibolites, &c., 101. 



Anamorphs, 308. 



Ancyloceras cf. suhandiiDium, 256. 



Andes of Peru & Bolivia, geol. sects, 

 through, 246-84 figs. & pis. xv-xx. 



Annelid-tubes in Neocom. quartzites 

 of Peru, 252. 



Annual General Meeting, vii et seqq. 



Anmdaria in E. Glamorgan Coal- 

 Measures, 58. 



Anticona laccolite (Peru), 261 & pis. 

 xviii-xix. 



Apical angle in turriculate gastro- 

 pods, 302. 



Aplites in Flinders Series, 89. 



Arch'imylacrls pri)iglei, sp. nov., 23- 

 29 figs. & pi. i. 



Arctic flora of Gam Valley, 4-22 figs. 



Assets, statement of, xlv. 



Asterophyllites in E. Glamorgan Coal- 

 Measure s, 57. 



' Atlantic ' facies of Perene granite, 



275, 278. 

 Aucella sp., 256. 

 Auditors elected, v. 

 Avonian of Avon section, lithological 



succession, 213-45 & pis. viii-xiv. 



Balance-sheet for 1920, xl-xli. 



Balston, W. E., 246, 284. 



Bargany Group, see Dailly Stage. 



Barker, T. V., 211. 



Barlow-Jameson Fund, list of re- 

 cipients, xxxvii. 



Barnwell (Cambridge) , Arctic flora at, 

 4-22 figs. 



Barnwood (Gloucester), dreikanter 

 from, iv. 



Barwon Park (Queensland), Glosso- 

 pteris flora of, 292, 293. 



Batastomella, see Bryozoa-Bed. 



Baxter, W. E., obituary of, Ixxiv. 



Bayzand, C. J., 238. 



Beekite in Saccaminina, 193-94. 



Bell, A. M., obituary of, Ixxii. 



Bennett, F. J., obituary of, Ixxv. 



Bibliography of Coal- Measure floras, 

 31 ; of pre-Cambrian of S. Eyre 

 Peninsula, 130 ; of nomenclature of 

 Valentian Series, 144-52 ; of the 

 Avonian of the Avon Section, 213- 

 15 ; of Andes of Bolivia & Peru, 

 281-82 ; of sporangia (P) of Glosso- 

 pteris, 294-95 ; of the evoliTtion of 

 Lias sic gastropods, 342. 



BiGSBT Medal awarded to L. L. Fcr- 

 mor, li-lii ; B. medallists, list of, 

 XXX vi. 



Birkhill Stage = Lr. Valentian, 153. 



