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The following pages really are what they purport to be, extracts from the note-book of a geologist much engaged in various economic inquiries which are connected with and arise out of scientific investigations. In the course of his inquiries, the Author has often noted down in greater or less detail those events and facts that seemed to him at the time important, whether bearing directly on his immediate object, or affecting the practice of geology in other departments, or worthy of remark from their novelty or general interest. It has sometimes happened that accidental delays in travelling have enabled him to write down his impressions at once, and at some length; while not unfrequently points of the greatest
interest have been very slightly touched upon, simply from want of time to record observations.
The mixed tone of scientific discussion and narrative that prevails in this book may seem tedious to some readers ; while others may be willing to excuse, if they do not actually approve of it. It must be left for the critic and the public to determine whether the matter will justify the manner.
Most of the actual statements made can be depended on, as they are either the result of personal investigation or strict local inquiry. For the opinions and conclusions the author alone is responsible; and, with regard to these, he is anxious to have it understood that he is wedded to no theories, and is only desirous of bringing out the truth.
17 Manchester Street,
London, 31st July, 1854.
LIST OF ILLUSTRATIONS.
PLATE 1. A street in Madrid......
..Frontispiece. 2. View of the Pic du Midi de Pau .......... To face page 42 3. The Silk Hall of Valencia
4. The Harbour of San Sebastian
Page FIGURE 1. Section across the coal-field of Ancenis (Brittany) 7
2. Section across the thick coal and lower seams in the
14 3. Section across the middle seams of the Aubin coal
19 5. Square arch in the Gallery of the Knights at Nîsmes, formed of solid blocks of stone
34 6. View of the Pont du Gard, near Nîsmes
36 7. View of the town and châtean of Pau......
41 8. Costumes of fisherwomen, St. Jean de Luz, near Bayonne, on the Spanish frontier.
138 9. Group of ancient Roman vases, from the Western coast of the island of Sardinia
167 10. Plan of a house at Gonnos Fanadiga, a village in the island of Sardinia
175 11. Group of Sardinian villagers in their national costume 176 12. Ancient monoliths in the island of Sardinia
15. Group of ancient Roman vases, from the island of
15 bis. Costume of the Arabs of Algiers
16. Ground plan of a mosque at Algiers
17. Fac-simile of an Arabic pass from Cherchel to Tenez.. 240
18. Section of Kanawha coal (Western Virginia) across
one of the lateral valleys
19. Illustration of the temporary dying out of a coal seam
in the Kanawha coal-field
20. General section across the Appalachian chain, from the
valley of the Ohio to the Atlantic.......
21. Section across the district worked for gold in the
Garnett and Mosely mines, in Eastern Virginia 289