# Transactions of the Geological Society, 1st series, vol. 3/Index

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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 |
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| Bogg, Mr. Edward. A Sketch of the Geology of the Lincolnshire Wolds | 392 |
| Bale or Ochre, occurs in beds in the North of Ireland | 186 |
| Calcareous stalactites in caves in the trap in the Isle of Rathlin | 194 |
| Cambridgeshire, The Rev. J. Hailstone, on the Geology of | 243 |
| Carbon, an ingredient in some traps | 9 |
| Carbonate of Lime, found in the trap in Sky | 91 |
| Cardona, in Spain. Dr. Traill on the Salt Mines of | 404 |
| Caves, numerous in the cliffs of secondary strata at Loch Slapin, in Sky | S5 |
| ──── abounding in stalactitic concretions, in Sky | 25 |
| Chabacite, found at Talisker in Sky | 83 |
| ──── abundant at Storr in Sky | 83 |
| Chalk, in the North of Ireland, described | 139 |
| ──── Formation of the North of Ireland, described | 169 |
| ──── extent of the formation of, in the North of Ireland | 114 |
| ──── in the Lincolnshire Wolds, peculiar circumstance in the springs of | 393 |
| Chlorite slate, Mica slate passing into, in Sky | 29 |
| Clay, beds of, in connection with the Salt of Cardona | 406 |
| Clay slate, Mica slate passing into, in Sky | 29 |
| ──────── stratified with dark blue quartz rock, in Sky | 32 |
| ──────── interstratified with the beds of red sandstone, and sometimes passing into graywacke slate, in Sky | 36 |
| ──────── among the flœtz rocks of Werner | 31 |
| ──────── effect produced by a large whin dyke traversing it, in Antrim | 205 |
| Clinkstone, in Sky | 66 |
| ──────── porphyry occurs in the North of Ireland | 196 |
| Clinometer, Lord Webb Seymour's Description of one | 385 |
| ──────── may be applied in guaging | 391 |
| Coal, occurs in Sky | 97 |
| ──── found at Tyrone in Ireland | 125 |
| ──── Ballycastle in Ireland | 126 |
| ──── altered by contact with greenstone in Staffordshire | 253 |
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| Coal, pieces of, found in the alluvium of the Lincolnshire Wolds | 398 |
| ──── formations of the North of Ireland, described | 154 |
| ──── measures, strata similar to those covering the, in England found beneath the basalt in the North of Ireland | 129 |
| Conformity of primary and secondary strata in Sky | 50 |
| Conglomerate, of the South Western pitt of Somersetshire, described | 356-358 |
| Contortions, of the slaty strata of Somersetshire | 346 |
| Conybeare, Rev. W. Introduction to Dr. Banana's account of the Geological Features of the North Eastern Counties of Ireland | 121 |
| ───────────── Descriptive notes referring to the Outline of Sections presented by a part of the Coasts of Antrim and Derry | 196 |
| Copper ore, found in the limestone of Somersetshire | 344-352 |
| Coruisk, Lake, in Sky, | 24 |
| Corundum, C. T. Swedensterinas account of the, from Gellivara in Lapland | 415 |
| Cuchullin hills, in Sky, described | 12 |
| ────────── Geology of the | 41 |
| Decomposition, of Trap assisted by tillage of the soil covering it | 11 |
| ──────────── of the Red hills in Sky more rapid than the Cuchullin 14 |
| Denudation, of Strata in the North of Ireland | 129-132 |
| Derry, Description of the Sections presented by the Coast of | 126 |
| Dykes, in the North of Ireland, Dr. Berger | 223 |
| ──── their direction generally parallel | 224 |
| ──── cut through metallic veins | 231 |
| ──── Rocks of which they are composed | 228 |
| ──── Minerals found imbedded in | 220 |
| ──── of Monte Somma in Italy, described | 233 |
| Elevations, of places in the North of Ireland, by Dr. Berger | 217 |
| Epidote, found in Sky | 91 |
| Esmark Professor, Description of a new Ore of Tellurium | 413 |
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| Flœtz rocks, in the North of Ireland, described | 152 |
| Flinty slate, containing Ammonites at Portrush | 213 |
| ──────── covered by Trap in Sky | 98 |
| Fossil remains, of the Green sandstone of Ireland | 169 |
| ────────── of the Chalk of Ireland | 169 |
| Foy, mountain, near Carlingford, chiefly composed of Primitive Trap | 140 |
| Garsven, mountain in Sky, durable nature of | 24 |
| ──── its base composed of Red sandstone | 37 |
| ──── in Sky composed of large grained Greenstone | 65 |
| Geology, may be of service to agriculture | 9 |
| Gillan, in Sky, order of the beds at | 44 |
| Glamich mountain, in Sky, consists of Syenitic rock and Clinkstone | 14 |
| ────────── affects the magnetic needle | 95 |
| Glen Tilt. A Geological Description of, by Dr. Mac Culloch | 259 |
| ──── connection of its granite with that of the Grampian hills | 302 |
| ──── General Geological Description of | 311 |
| Granite, the prevailing constituent of the Mourne mountains | 122-134 |
| ──── and Syenitic granite are geologically the same rock | 227 |
| ──── circumstances attending its contact with the stratified rocks in Glen Tilt | 312 |
| ──── found in the South Western part of Somersetshire | 348 |
| ──── veins, passing through Schist and Limestone in Glen Tilt | 268 |
| Graydon, The Rev. George, on the Dykes of Monte Somma in Italy | 238 |
| Green sand, underlying the Chalk in the North of Ireland . 130 |
| ──────── reposes immediately on Lias in the North of Ireland | 130 |
| Greenstone, occurs in Sky | 59 |
| ──────── its characters there | 63 |
| ──────── occurs in the North of Ireland | 142 |
| ──────── of the North of Ireland, described | 184-204 |
| ──────── Vein of in Glen Tilt | 281 |
| ──────── porphyry, occurs in Sky | 69 |
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| Greenstone slate, occurs in the Mourne mountains in the North of Ireland | 142 |
| Gregor, The Rev. W. Ou the Tremolite of Cornwall | 399 |
| Greystone, occurs in the North of Ireland | 186 |
| Greywacke, and Greywacke slate, in the North of Ireland, described | 146 |
| ──── of Somersetshire, described, by Mr. Horner | 345 |
| Gypsum, contained in large quantities in the red sandstone near Watchet | 375 |
| Hailstone, The Rev. J., Woodwardian Professor, &c. on the Geology of Cambridgeshire | 243 |
| Hornblende, crystallized in Sky | 59 |
| ──── found in the granite of the Mourne mountains | 135 |
| ──── with Mica occurs in the North of Ireland | 143 |
| ──── slate, in the North of Ireland, described | 140 |
| ──── rock, in the North of Ireland, described | 140 |
| Horner, Leonard, Esq. F.R.S. Sketch of the Geology of the South-Western part of Somersetshire | 338 |
| Hypersthene, found in Sky | 66-92 |
| ──── in Aberdeenshire | 93 |
| Ichthyophthalmite, found at Dunvegan in Sky, | 90 |
| Induration, of Mineral substances after taking them from their beds | 286 |
| Ireland, Geological Sections of the Coasts of Antrim and Derry, described | 196 |
| ──── The Rev. W. Conybeare on the Geological Features of the North Eastern Counties of | 121 |
| ──── Dr. Berger on the Geological Features of the North Eastern Counties of | 121 |
| ──── and Scotland, similarity in the Structure of part of | 123-124 125-131 |
| Junction, remarkable one at Glen Tilt. | 274 |
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| Kenbaan cliffs, on the Coast of Antrim, described | 209 |
| Kyle ric'h, District in Sky, consists of Quartz rock | 8 |
| ──── Mountain above, composed of dark blue Quartz rock | 33 |
| Laumonite, found in Sky | 90 |
| Lias. See Lyas. |
| Limestone, bed of compact, containing shells, included between beds of Quartz rock near Gnllan in Sky | 30 |
| ────── and Sandstone alternating with Mica slate near Borrereg in Sky | 31 |
| ────── its position and characters in Sky | 38 |
| ────── reposes on Syenite at Kilbride in Sky | 89 |
| ────── alternating with shell Limestone near Borrereg | 41 |
| ────── its characters when in contact with Syenite in Sky | 42 |
| ────── its contact with Trap at Loch Eishort in Sky | 43 |
| ────── primitive, in the North of Ireland, described | 139 |
| ────── a subordinate member of the mica slate formation in the North of Ireland | 139 |
| ────── transition, in the North of Ireland, described | 147 |
| ────── alternates with Transition trap and Greywacke slate, in the North of Ireland | 147 |
| ────── Flœtz, associated with the Coal formation, in the North of Ireland, described | 162 |
| ────── abounding in veins of Granite, in Glen Tilt | 265 |
| ────── fibrous, found in Glen Tilt | 290 |
| ────── of Glen Tilt, described | 304 |
| ────── containing Madrepores, interstratified with slate, in Somersetshire | 344 |
| ────── Beds of, enveloped in slate, in Somersetshire | 350 |
| ────── Quarries, in the South Western part of Somersetshire, described | 351 |
| ────── near Halsey cross, described | 353 |
| ────── large Vein of, in the conglomerate of Somersetshire | 357 |
| ────── of Cannington Park, described | 365 |
| ────── Columnar distinct concretions in, in Somersetshire | 369 |
| ────── of Somersetshire, Organic remains in | 369 |
| Lincolnshire Wolds, Mr. Bogg's Sketch of the Geology of | 393 |
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| Londonderry, Primitive mountain chain oi§ described | 123 |
| Lyas limestone, in the North of Ireland, described | 130 |
| ── formation, in the North of Ireland, described | 164 |
| ── of the South Western part of Somersetshire, described | 367 |
| ── its junction with the red sandstone in Somersetshire | 374 |
| ── its most western point in England is East Lynch | 379 |
| Lydian stone, found at Duntulm in Sky | 98 |
| Mac Culloch, John, M.D. Sketch of the Mineralogy of Sky | 1 |
| ──────── A Geological Description of Glen Tilt | 259 |
| Magnet, Various rocks in Glen Tilt affecting the | 324 |
| Marble, at Strath in Sky, described | 101 |
| ──── Observations on various sorts of Statuary | 104 |
| ──── of Sky varying in hardness from the Trap veins traversing it | 110 |
| ──── of Glen Tilt, described | 282 |
| Marie, Remarkable bed of, in the Green Sandstone of Londonderry | 168 |
| ── containing land shells in Glen Tilt | 316 |
| Mesotype, found in various states in Sky | 86 |
| Mica slate, one of the oldest rocks in Sky | 28 |
| ────── and Quartz rock generally alternating | 28 |
| ────── its situation in Sky | 28 |
| ────── found passing into Clay slate, Talc slate, and Chlorite slate, in Sky | 29 |
| ────── contact with other stratified rocks at Loch Eishort | 31 |
| ────── Numerous Trap veins in, in Sky | 30 |
| ────── very generally distributed over the North of Ireland | 136 |
| Mourne Mountains, in Ireland, described | 122-134 |
| Mulattoe, the name given in Ireland to the Green sand | 130 |
| Murloch Bay, on the Coast of Antrim, described | 203 |
| Nomenclature. Dr. Mac Culloch's Observations on that of certain rocks | 335 |
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| Organic remains, abundant in Barbadoes | 237 |
| ──────── of the Chalk in Cambridgeshire | 250 |
| ──────── of the Limestone of Somersetshire | 369 |
| Pearlstone porphyry, occurs in the Basalt district of the North of Ireland | 190 |
| Pecherz, found in Cornwall | 113 |
| Phillips, Mr. W. On the Oxyd of Uranium the production of Cornwall | 112 |
| Pinite, found in porphyry near Glen Tilt | 308 |
| Pitchstone, of a singular character found in Sky | 94 |
| ──── porphyry, occurs in the basalt district of the North of Ireland | 190 |
| Porphyry, in the North of Ireland, described | 143 |
| ──── occurs in the basaltic area of the North of Ireland | 189 |
| ──── singular variety of, found in Glen Fernat | 310 |
| Prehnite, occurs in trap veins in Sky | 80 |
| Quantock hills, in Somersetshire, described | 339 |
| Quartz rock, one of the oldest rocks in Sky | 28 |
| ────── and Mica slate generally found alternating | 28 |
| ────── appears to have been stratified in Sky | 30 |
| ────── numerous Trap veins in, in Sky | 30 |
| ────── in contact with and conformable to beds of red sandstone, at Ord, in Sky | 30 |
| ────── Limestone with shells between beds of | 31 |
| ────── Limestone and red sandstone alternating with | 31 |
| ────── contact of other stratified rocks with, at Loch Eishort, in Sky | 31 |
| ────── dark blue stratified with beds of clay slate | 32 |
| ────── superimposed on the granite in Glen Tilt | 303 |
| ────── passing into granite in Glen Tilt | 293 |
| Red hills, in Sky, described | 14-68 |
| Red marle, in the North of Ireland, described | 131 |
| Red sandstone, its position, in Sky | 34 |
| | page |
| Red sandstone, alternates with schist, at Loch Eishort in Sky | 35 |
| ──────── interstratified with beds of schist, in Sky | 36 |
| ──────── in Sky lie between limestone and quartz rock | 37 |
| ──────── its characters | 37 |
| ──────── in the North of Ireland, described | 149 |
| ──────── alternating with greywacke, at Scabro hill | 149 |
| ──────── thickness of the formation of, at Strangford Lough | 150 |
| ──────── of Minehead, described | 357 |
| ──────── marly, near Wotton Courtney, described | 359 |
| ──────── argillaceous, in Somersetshire, described | 363 |
| Sahlite, found in Glen Tilt | 289 |
| Salt mines, of Cardona in Spain, Dn. TRAILIJS Observations on the | 404 |
| Sandstone, upper bed of, in Sky | 46 |
| ──── remarkable disposition of the strata of, in Sky | 47 |
| ──── Flœtz formations in the North of Ireland, described | 160 |
| ──── Green, in the North of Ireland, described | 167 |
| ────── of Ireland, fossils of | 169 |
| ────── Red. See Red sandstone. |
| Scavig, Loch, Description of | 83 |
| Schiefer spar, sometimes found in the calcareous beds in Glen Tilt | 288 |
| Schist, of Glen Tilt, described | 308 |
| ── singular variety of, found in Ben Gloe | 309 |
| Section, remarkable one shewn in the valley of the Tilt | 277 |
| Serpentine, noble, commonly mixed with the marbles of Scotland | 283 |
| Seymour, Lord Webb. Description of a Clinometer | 385 |
| Shale, its thickness in the Lincolnshire Wolds | 395 |
| Shell marle, bed of, in Glen Tilt | 316 |
| skey, Joseph, M.D. Physician to the Forces. Remarks upon the Structure of Barbadoes, as connected with specimens of its rocks | 236 |
| Sky, Dr. Mac Culloch's Sketch of the Mineralogy of | 1 |
| ── general geographical description of | 4 |
| ── great Northern division consists of trap | 8 |
| | page |
| Sky, description of the rock districts of | 19 |
| ── small quantity of alluvial land in | 18 |
| ── description of the Coasts of | 19 |
| ── remarkable slide of the cliff in | 22 |
| ── detailed description of the rocks of | 28 |
| ── Marble limestone alternating with shell limestone reposing on syenite in | 41 |
| ── account of the mineral substances in | 82 |
| ── junction of trap and shale in | 99 |
| ── description of the marbles at Strath in | 101 |
| Slate, interstratified with limestone containing madrepores, in Somersetshire | 344 |
| Sleat district in Sky, consists of mica slate . . . . 28 |
| Slide, remarkable one of the cliff, in Sky | 22 |
| ── of the hill in Strathaird in Sky | 24 |
| ── in the conglomerate, at Mount Radford | 362 |
| ── numerous on the coast of Somersetshire | 372 |
| Somersetshire, Leonard Horner, Esq. Sketch of the Geology of | 338 |
| Sphene, found in the granite of Glen Tilt | 301 |
| Stalactites, abundant in a cave in Sky | 26 |
| Steatite, occurs in the trap in Sky | 91 |
| ── mixed with the marble of Glen Tilt | 283-285 |
| Stilbite, abundant in Sky | 85 |
| Storr, in Sky, Zeolites abundant in the trap at | 16 |
| Strath, district in Sky, lies on a bed of limestone | 7 |
| ── Description of | 15 |
| Strathaird, in Sky, situation of the district so called | 5 |
| ──── almost entirely composed of secondary strata | 7 |
| ──── remarkable trap veins at | 79 |
| Stratified rocks, in Sky, description of | 31 |
| ──────── their contact with quartz rock and mica slate | 31 |
| Strontian, sulphate of found crystallized in the septa of limestone masses, in Somersetshire | 371 |
| Submarine forest, on the coast of Somersetshire | 380 |
| Swedenstiarna, C. T. An account of the Swedish Corundum from Gellivara, in Lapland | 415 |
| | page |
| Syenite in Sky supporting and mixed with limestone | 40 |
| ──── in Sky, described | 68 |
| ──── its tendency to decompose | 70 |
| ──── in contact with marble limestone, in Sky | 70 |
| ──── in Sky of later formation than the limestone | 76 |
| ──── in the North of Ireland, described | 144 |
| ──── distinguished from syenitic granite, by Dr. Mac Culloch | 300 |
| Syenitic granite, and granite, their Geological identity | 297 |
| Talc slate, mica slate passing into, in Sky | 29 |
| Talisker, in Sky, abounds in zeolites | 82 |
| Tellurium, Professor Esmark's Description of a new Ore of | 413 |
| Titanium, Oxide of, found in Scotland | 309 |
| Traill, Thomas Stewart, M.D. Observations on the Salt Mines of Cardona, made during a tour in Spain in the summer of 1814 | 404 |
| Transition rocks, in the North of Ireland, described | 146 |
| Trap, forms the great Northern division of Sky | 8 |
| ── decomposed, forms fertile soil | 9 |
| ── veins in the secondary strata at Loch Slapin, in Sky, washed away | 25 |
| ── vein in a cave, in Sky | 26 |
| ── general account of, in Sky | 54 |
| ── stratified detached masses of, in Sky | 56 |
| ── varieties of, in Sky | 57 |
| ── rarely columnar, in Sky | 58 |
| ── veins in Sky, account of | 75 |
| ── ── two sets of | 76 |
| ── effect of the junction of the, on the shale in Sky | 99 |
| ── Mr. Aikin's Observations on a bed of, at Birch Hill colliery | 251 |
| ── primitive, in the North of Ireland, described | 140 |
| ────── consists almost entirely of hornblende | 140 |
| ── transition, in the North of Ireland, described | 145 |
| ── Flœtz, bed of, lying in conformable position between the strata of sand in the coal formation of Ballycastle | 159 |
| ────── formation in the North of Ireland, described | 177 |
| | page |
| Trap tuff, in Sky | 59 |
| Tremolite, found abundantly in the marble of Glen Tilt | 285 |
| ─────── peculiar granular variety found in Glen Tilt | 288 |
| ─────── of Cornwall. The Rev. W. Gregor on | 399 |
| Uranium. Mr. W. Phillips on the Oxyd of, of Cornwall | 112 |
| Veins of trap, in Sky | 75 |
| ────────── two sets of different ages | 76 |
| ──── of clinkstone, in Sky | 78 |
| ─── frequency of, at Strathaird in Sky | 79 |
| Vein, of greenstone, in Glen Tilt | 281 |
| ──── large limestone, in the conglomerate of Somersetshire | 357 |
| ──── of sulphate of barytes, in the limestone of Cannington Park | 365 |
| Wacke, balls of, contained in a calcareous vein in chalk | 173 |
| ──── interstratified with chalk in a conformable position | 173 |
| ──── of the North of Ireland, described | 187 |
| Wells, in the chalk of the Lincolshire Wolds communicate with the sea | 393 |
| Whin dykes, of Fairhead, described | 205 |
| Wood Coal, occurs in the North of Ireland | 188 |
| Zeolites, abundant in the trap, in Sky | 10 |
| ────── resist decomposition for a long time | 10 |
| ────── found in great quantities in the Storr, in Sky | 16 |
| ────── abundant in the amygdaloidal trap, in Sky | 58—188 |
| ────── description of the, in Sky | 82 |
| ────── cubic, found in the North of Ireland | 188 |