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Syenite in Sky supporting and mixed with limestone |
40
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──── in Sky, described |
68
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──── its tendency to decompose |
70
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──── in contact with marble limestone, in Sky |
70
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──── in Sky of later formation than the limestone |
76
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──── in the North of Ireland, described |
144
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──── distinguished from syenitic granite, by Dr. Mac Culloch |
300
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Syenitic granite, and granite, their Geological identity |
297
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Talc slate, mica slate passing into, in Sky |
29
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Talisker, in Sky, abounds in zeolites |
82
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Tellurium, Professor Esmark's Description of a new Ore of |
413
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Titanium, Oxide of, found in Scotland |
309
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Traill, Thomas Stewart, M.D. Observations on the Salt Mines of Cardona, made during a tour in Spain in the summer of 1814 |
404
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Transition rocks, in the North of Ireland, described |
146
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Trap, forms the great Northern division of Sky |
8
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── decomposed, forms fertile soil |
9
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── veins in the secondary strata at Loch Slapin, in Sky, washed away |
25
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── vein in a cave, in Sky |
26
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── general account of, in Sky |
54
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── stratified detached masses of, in Sky |
56
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── varieties of, in Sky |
57
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── rarely columnar, in Sky |
58
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── veins in Sky, account of |
75
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── ── two sets of |
76
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── effect of the junction of the, on the shale in Sky |
99
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── Mr. Aikin's Observations on a bed of, at Birch Hill colliery |
251
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── primitive, in the North of Ireland, described |
140
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────── consists almost entirely of hornblende |
140
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── transition, in the North of Ireland, described |
145
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── Flœtz, bed of, lying in conformable position between the strata of sand in the coal formation of Ballycastle |
159
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────── formation in the North of Ireland, described |
177
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