PROCEEDINGS OF THE YORKSHIRE 
Vol. VII.— Part III. 
WITH THREE PLATES. 
Edited by JAMES W. DAVIS. F.S.A., F.L.S., F.G.S. 
18SO. 
CONTENTS. 
Px^PEKS :— page. 
1. Address. By Marquis of Ripon, K.G., <fcc, President 221 
2. " On the Distribution of Fossil Fishes in the Yorkshire Coal 
Fields." By James W. Davis, F.S.A., F.G.S. , & c . .. 228 
3. " On a Fault in the Chalk of Flambro' Head, wi h some Notes on 
the Drift of the Locality." By G. W . Lamplugh 242 
4. " On Glacial Deposits North of Bridlington." By. J. R. Dakyns, 
M.A., H.M. Geological Survey 246 
5. "On the Age of the Penine Chain." By E. Wilson, F.G.S. 
( References ) , 252 
6. " On a Short History of the Creswell Caves." By the Rev. J. 
Magens Mello. M.A., F.G.S., &c 252 
7- " On a Group of Erratic Boulders, at Norber, near Clapham, in 
Yorkshire." By James W. Davis 266 
8. " On the Junction of the Permian and Coal Measures, at Conis- 
borough." By Rowland Gascoigne, F.G.S. (References) ... 274 
9. "On a Chemical Method of Distinguishing Black Obsidian from 
Black Blast Furnace Slag." By W. H. Wood, F.C.S 274 
10. "On Traces of Ancestral Relations in the Structure of the 
Aste7T>idea." By W. Percy Sladen, F. L.S., F.C.S. 275 
11. " On the Geology of the District around Middlesborough. By AY. 
Y. Yeitch. (Abstract) 284 
12. "Notes on the Geology of the Cleveland District." By Thos. 
Allison 285 
1 3. " On some Bonrs of Ctenodus." By Prof. L. C. Miall 289 
14. " Report of the Raygill Fissure Exploration Committee, consisting 
of Prof. A. H. Green, M.A., F.G.S. ; Prof. L. C. Miall, F.G.S.; 
John Brigg, F.G.S.; and James W. Davis, F.S.A., F.C.S., &c. 
(Reporter.) 300 
15. Secretary's Report 307 
10. Minutes and Balance Sheet 310 
17- Summary of Geological Literature, 1878, 1879, and 1880 319 
18. List of Members 324 
LEEDS: 
PRINTED BY A. MEGSON, BAINES' BUILDINGS, BA-NK ST. 
18S1. 
