ON THE CLASSIFICATION OF THE CARBONIFEROUS SERIES.
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33. On the Upper Limit of the essentially Marine Beds of the Carboniferous Group of the British Isles and adjoining Continental Districts; with Suggestions for a fresh Classification of the Carboniferous Series. By Professor Edward Hull, M.A., F.R.S., F.G.S., Director of the Geological Survey of Ireland. (Read April 25, 1877.)
Contents.
Part I.
A. Introductory. Progress of correlating the Carboniferous Beds of Ireland with those of Great Britain. B. Table of the British Carboniferous Series.
Part II.
Irish Carboniferous Districts. A. Southern Coal-districts. 1. Castlecomer and Killenaule Coal-fields; 2. Limerick, Clare, &c. B. Northern Coal-districts. 1. Leitrim Coal-fields; 2. Tyrone Coal-field; 3. Bally castle Coal-field.
Part III.
English Carboniferous Districts. 1. South Lancashire; 2. Yorkshire and Derbyshire; 3. North Staffordshire; 4. Flintshire and Denbighshire; 5. Coalbrook Dale; 6. South Staffordshire; 7. Leicestershire; 8. Warwickshire; 9. Somersetshire; 10. South Wales Coal-basin.
Part IV.
Scottish Carboniferous Districts. General Section of the Carboniferous Series; Representatives of the Gannister and Yoredale Beds (Stages E and C); Representative Stages in the North of England and Central Scotland.
Part V.
Continental Equivalents. A. Stage E or "Gannister Beds," with Marine Shells. 1. Belgium; 2. North of France; 3. Silesia; 4. Westphalia. B. Equivalents of Stages A, B, C, and D. Table of British and Continental Divisions. [Note. American Representatives.]
Part VI.
(a) General Conclusions regarding the Characters of the Fauna, (b) Census of Marine Forms; (c) Occasional Marine Beds in Stage F; (d) Present mode of Classification objectionable; (e) Proposed new Classification; (f) Summary of Conclusions. Table of Representative Divisions and Stages. Table of Marine Organisms, with their vertical range.
Part I.
Introductory.—It is only recently that the materials have been obtained for a complete comparison between the different members of the Carboniferous group as they occur in Ireland and Great Britain. Much misconception has, for example, prevailed in some quarters regarding the true position in the series of those beds which, in the south of Ireland, immediately overlie the Carboniferous Limestone; and by some means or other, which I have not fully
