Page:Transactions of the Geological Society, 1st series, vol. 3.djvu/441

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Aikin Arthur, Esq. Observations on a bed of Trap occurring in the colliery of Birch hill in Staffordshire	251
Alluvial Formations of the North of Ireland	193
Alluvial land, small quantity in Sky	18
Analcime, found abundantly at Talisker in Sky	82
Antrim, Description of the Sections presented by the Coast of	196
Asbestus, its soft state while in the bed	285
Barbadoes, Dr. Skey's remarks on the structure of	236
──────── Successive terraces of different elevations in	237
Barytes, Sulphate of, Vein of, in the limestone of Cannington Park	365
Basalt, stratified, enormous mas covering secondary strata in the North of Ireland	129
────── Extent of the area of, in the North of Ireland	179
──────Tabular, in the North of Ireland	181
────── Columnar, in the North of Ireland, described	181
────── Mr. Conybeare's arguments in favor of its igneous origin	208
────── Large spherical mass of, enveloped in the chalk on the coast of Antrim	212
────── overlying the chalk in Antrim and Derry, described	198
Basaltic Dykes, effect produced by their traversing chalk in the North of Ireland	172
────────── remarkable one traversing the red sandstone of the Coast of Antrim	200
Basaltic group of Mountains in the North-East of Ireland described	127
Berger, J. F. M.D. On the Geological Features of the North-Eastern Counties of Ireland	121
────────────── On the Dykes of the North of Ireland	223
Bitumen, found in Barbadoes	241
Blaven, in Sky, situation of the mountain so called	12