GEOLOGICAL LITERATURE. 
213 
DAKYNS, J. R., C. F. Strangways and W. H. Dalton. Sheet 200 (Keighley) 
of the Geological Survey Map of Yorkshire. (Six inches to a mile.) 
and C. F. Strangways. Sheet 185 (Kildwick) of the Geological Survey 
Map of Yorkshire. (Six inches to a mile.) 
Davis, James W. On the Unconformability of the Permian Limestone to the 
Red Rocks West of its Escarpment in Central Yorkshire. Proc. Geol. and 
Polyt. Soc. of West Riding of Yorkshire, new series, pt. iv., p. 280. 
On the Junction of the Silurian Rocks and Carboniferous Limestone on 
Moughton Fell, in Ribblesdale. Ibid. p. 309. 
and F. A. Lees. West Yorkshire : an account of its Geology, Physical 
Geography, and Botany. Maps and plates; pp. xi.-414. 8vo., London. 
The Ichthyography of the Northern Portion of the West Eiding 
Coal Field. Proc. Mid. Inst, of Min. C. and M. Engineers, vol. vi., pt. 
xlii., p. i. 
GREEN, A. H. (Prof.), and R. Russell. The Geology of the Neighbourhood of 
Wakefield and Pontefract (87 N.-W.) Geol. Survey Memoir, p. 13. 
8vo., London. 
Geology of the Neighbourhood of Barnsley (87 S.-W.) Geol. Survey 
Memoir, p. 17. 8vo., London. 
R. Russell, J. R. Dakyns, J. C. Ward, C. F. Strangways, W. H. Dalton, 
and T. V. Holmes. The Geology of the Yorkshire Coal Fields. Geol. 
Survey Memoir, pp. xiii.-824 ; 26 plates. 8vo., London. 
PARKE, Geo. H. On the Occurrence of Vermiculite in England. Proc. Geol. and 
Polyt. Soc. oj W. Bid. of Yorks., new series, pt. iv., p. 254. 
Parsons, H. Franklin. The Alluvial Strata of the Lower Ouse Valley. Ibid. 
p. 214. 
RUSSELL, R. The Flockton Coals and the Physical Conditions which led to their 
Formation. Trans. Mid. Inst. M. C. and M. Eng., vol. v., p. 48. 
RiPON, Marquess of. On Scientific Research. Proc. Geol. and Polyt. Soc. of W. 
Rid. oj Yorks., new series, pt. iv., p. 203. 
SLADEN, W. Percy. On the Genus Poteriocrinus and Allied Forms. Ibid. p. 242. 
Tute, Rev. J. Stanley. Notes on the Glacial Drift near Ripon. Ibid. p. 210. 
Ward, J. C, J. Lucas, and R. Russell. Sheet 202 of the Geological Survey 
Map of Yorkshire. (Six inches to a mile.) 
%* The compiler has much pleasure in acknowledging the kind assistance 
received from the Editors of the Geological Record, who have placed their advanced 
sheets and MS. at his disposal. Thanks are especially due to W. H. Dalton, Esq., 
of H.M. Geological Survey. 
