PREFACE iii
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I. MY FIRST GEOLOGICAL EXCURSION 1
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[011] Such was my first geological excursion -- a simple event enough,
and yet the turning-point in a life. Thenceforward the rocks and
their fossil treasures formed the chief subject of my every-day
thoughts. That day stamped my fate, and I became a geologist.
II. "THE OLD MAN OF HOY" 22
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III. THE BARON'S STONE OF K1LLOCHAN 40
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IV. TIE COLLIERS OF CARRICK 59
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V. AMONG THE VOLCANOES OF CENTRAL FRANCE 74
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VI. THE OLD GLACIERS OF NORWAY AND SCOTLAND 109
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VII. A FRAGMENT OF PRIMEVAL EUROPE 145
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VIII. ROCK-WEATHERING MEASURED BY THE DECAY OF TOMBSTONES
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IX. IN WYOMING 180
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X. THE GEYSERS OF THE YELLOWSTONE 206
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XI. THE LAVA-FIELDS OF NORTH-WESTERN EUROPE 239
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XII. THE SCOTTISH SCHOOL OF GEOLOGY 250
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XIII GEOGRAPHICAL EVOLUTION 272
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[295] If we take ... The Silurian system -- and if we assume that it
spreads over 60,000 square miles of Britain with an average thickness
of 16,000 feet, or 3 miles, which is probably under the truth, then we
obain the enormous mass of 180,000 cubic miles. ... All this vast pile
of sedimentary rock was worn from the slopes and shores of the primeval
northern land. Yet it represents but a small fraction of the material
so removed, for the sea of that ancient time spread over nearly the
whole of Europe eastwards into Asia, and everywhere received a tribute
of sand and mud fom the adjoining shores.
XIV. THE GEOLOGICAL INFLUENCES WHICH HAVE AFFECTED THE COURSE
OF
BRITISH HISTORY 307
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NOTE: High Resolution images of
all
illustrations are available
here.
1. The Old Man of Hoy." (Sketched from the Sea) 26
2. View of the Flagstone Cliffs of Holburn Head, Caithness 33
3. View of Flagstone Cliffs, Brough of Birsay, Orkney 34
4. View of the Gneiss Cliffs near Cape Wrath 37
5. View of part of the Cliffs near St. Abb's Head 38
6. View from the top of the Puy de Pariou 91
7. Ice-worn bosses of gneiss and perched blocks. North coast of
Sutherland 113
8. Map of the Neighbourhood of the Holands Fjord (Munch) 117
9. View of the two Glaciers of Fondalen, Holands Fjord 119
10. Longitudinal Section of smaller Glacier. Fondalen 121
11. Sketch-map of lower and of larger Glacier. Fondalen 123
12. Sections across the lower end of the larger Glacier.
Fondalen 124
13. Map of the Jökuls Fjeld promontory (after Munch) 132
14. View of Jökuls Fjord Glacier 134
15. Section of Foot of Jökuls Fjord Glacier 136
16. View of Glaciers at the head of Nus Fjord 141
17. Section on beach at Nus Fjord 143
18. Section on beach at Ardmarnock, Loch Fyne 143
19. Ben Leagach, Glen Torridon 149
20. View of the ancient platform of gneiss looking eastward
from
above Scourie, Sutherlandshire 151
21. Ben Shieldag, Loch Torridon 153
22. View of outlier of Cambrian breccia and sandstone among
gneiss
hills near Gairloch 155
23. Sections of the junction of the fundamental gneiss and
overlying
Cambrian breccia. Gairloch 157
24. Microscopic structure of white marble employed in Edinburgh
tombstones 163
25. Terraces of Great Salt Lake, along the flanks of the
Wahsatch
Mountains, south of Salt Lake City 211
26. Alluvial Cones of the Madison Val1ey 215
27. Terraces below the second canyon of the Yellowstone 219
28. "Old Faithful" in eruption 229
29. View on the Snake River, Idaho. Basalt Plain with younger
volcanic cones 237