Notices of Memoirs — The Barnsley Seam. 465 



Dr. D. M. S. Watson. — Vertebrate Life Zones in the Permo-Trias. 

 Professor R. C. Wallace. — The Corrosive Action of Brines in Manitoba. 

 Dr. A. Wilmore. — Carboniferous Limestone Zones of North-East 



Lancashire. 

 Mr. H. Day. — A brief Criticism of the Fauna of the Limestone Beds 



at Freak Cliff and Peakshill, Castleton. 

 Dr. Arthur Vaughan. — On the Shift of the Western Shore-line in 



England and Wales during the Avonian Period. 

 Dr. Albert Jowett. — A Preliminary Note on the Glacial Geology of 



the Western Slopes of the Southern Pennines. 

 Reports of Research Committees. 



Discussion on Radio-active Problems in Geology. Opened by Pro- 

 fessor Sir E. Rutherford. 

 Professor C. A. Edwards. — Twinning in Metallic Crystals. 

 Dr. J. W. Evans. — The Isolation of the Directions Image of a Mineral 



in a Rock-slice. 

 Dr. G. Sickling. — On the Micro- structure of Coal. 

 Mr. Thomas Crook. — On the Economic Mineral Products of Damara- 



land, South- West Africa. 

 Mr. W. Lower Carter — Committee to consider the preparation of 



a List of Characteristic Fossils. 

 Professor E. W. Skeats. — Committee to consider the Nomenclature 



of the Carboniferous, Permo-Carboniferous, and Permian Rocks of 



the Southern Hemisphere. 

 Dr. F. A. Bather. — Committee to consider the preparation of a List 



of Stratigraphical Names used in the British Isles, in connexion 



with the Lexicon of Stratigraphical Names in course of preparation 



by the International Geological Congress. 

 Professor W. G. Fearnsides. — Committee to excavate Critical Sections 



in Lower Palaeozoic Rocks of England and Wales. 

 Professor Grenville A. J. Cole. — Committee to investigate the Old 



Red Sandstone Rocks of Kiltorcan, Ireland. 



Section E. — Geography. 



Presidential Address by Major H. G. Lyons, F.R.S. 

 Professor J. W. Gregory, F.R.S. — Relations of the Central Lakes of 

 Westralia. 



II. — Papers read before Section C (Geology), British Association, 

 Manchester, September, 1915. 



(1) On the Underground Contours op the BARNSLEr Seam of 

 Coal in the Yorkshire Coalfield. By W. G. Fearnsides, 

 M.A., F.G.S., Sorby Professor of Geology, Universitv of 

 Sheffield. 



IN this paper the author presents a preliminary aecount of the 

 results of his statistical analysis of about a hundred records of 

 borings and sinkings which have proved the depth of the Barnsley 

 Bed or its equivalents (the Gawthorpe, the Warren House Coals of 

 Yorkshire, and the Top Hard Coal of Derbyshire) in Yorkshire. 

 The majority of the records of borings and sinkings discussed have 



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