LIST OF ILLUSTRATIONS.PAGE[1. Granitic Rocks off the Shetland Islands,]63[2. Iceberg seen in mid ocean, 1400 miles from land,]75[3. Block of Limestone Rock with Glacial-markings,]784, 5, 6, 7, 8. Examples of living Zoophytes:[Campanularia Gelatinosa;] [Gorgonia Patula,]131[Frustra Pilosa;] [Madrepora Plantaginea,]132[Corallium Rubrum,]133[9, 10. Fossil Ferns from the Coal Measures,]143[11. Trunk and roots of a forest tree; found erect in a Coal Mine, near Liverpool,]152[12. Fossil Irish Deer,]163[13. Fossil Wood, showing the rings of annual growth,]171[14, 15. Fossil Fish from Monte Bolea in Italy,]173, 174[16. Group of several Fossil Fish in one block of Limestone,]176[17. Fossil Fish from the Chalk Rock of Sussex,]177[18, 19. Two Skeletons of the Ichthyosaurus, from the Lias of Dorsetshire, preserved in the Museum of Trinity College, Dublin,]179[20. Plesiosaurus Cramptonii, from the Lias of Yorkshire, preserved in the Museum of the Royal Dublin Society,]182[21. The Megatherium, or Great Wild Beast,]185[22. The Mylodon Robustus,]186[23. Section of a Quarry in the Island of Portland, showing the stumps of an ancient forest standing erect in the solid rock,]189[24. Calamite from the Coal Measures of Newcastle,]191[25. Lepidodendron Sternbergii; a forest tree erect in a Coal Mine,]192[26. Lepidodendron Elegans; Stem and branches, from a Coal Mine, near Newcastle,]193[27. Section of a Coal Mine near Lyons, showing an ancient forest enveloped in Sandstone,]194[28. Bird’s-eye View of Santorin during the volcanic eruption of 1866,]255