vi 



INDEX. 



T 



Temperature of Earth's Crust at Slight 



Depths, 86 

 Tennant's, Prof. J., Catalogue of British 



Fossils, reviewed, 90 

 Tertiaries of Horn (Lower Austria) , 27 9 

 Tertiary Deposits in East Indies, Rev, 



S. Hislop on, 293 



Strata at Pectham, 412 



. at Woolwich, Eev. T. G. 



Bonney on, 296 

 Text Book, Advanced, of Geology, by 



D. Page, reviewed, 332 

 Tilestones, Upper Ludlow, Mr. G. E. 



Roberts on, 117 

 Tin- Ore at Evigtok, Greenland, J. W. 



Tayler on, 167 

 Toad, The Case of a, 330, 479 

 Topics, Geological, 432 

 Tungsten, The Metal, 260 



Y 



Vegetable Kingdom, General Group- 

 ing of, S. J. Mackie, 384 



Venus'-Haii- Stone, 412 

 Vesuvius, Activity of, 87 

 Vibrations of the Earth, 259 

 VitrioKte, a New Mineral, 260 

 Volcanic Cones and Craters, Mode of 



Formation of, G. Poulett Scrope on, 



124 



Volcano in Isle of Bourbon, 86 

 W 



Warp, Deposition of 491 



Watson, Dr., On Haematite Deposits of 



Glamorganshire, 241 

 Weardale, Physical Geology of, 38 

 Wetherell, N. T., On Small Nodular 



Concretions in Flints, 193 

 , On some ■ Stem-Plates of 



Bourgueticrinus, 449 

 Wharfedale, Geological Tour in, by Mr. 



Edward Wood, 445 

 Wigton, Cumberland, Geology of, 296 

 Wiltshire, Rev. T., On the Red Chalk of 



England, 261 

 Woolwich, Tertiary Strata at, 296 



LIST OF LIGNOGRA? IIS. 



LIGN. PAGE. 



1. Section, North Side of Permel- 

 lin Bay, beneath Mount 

 Flagon 19 



2. Natural Cave on the Hugh . 22 



3. Porphyritic Dyke or Elvan- 



course, at Watermill Bay, 



St. Mary's, Scihy .... 24 



4. Granite Blocks at Perth Hel- 



Hck 26 



5. Cast of Dorsal Valve of Cyr- 



tina septosa 98 



6. Athyris ambigua, internal 



Cast of Dorsal Valve . . . 98 



7. Internal Cast of Ventral Valve 98 



8. Interior of the Dorsal Valve . 99 



9. Producta horrida, interior of 



Dorsal Valve 106 



10. Interior of Ventral Valve . . 106 



11. Longitudinal Section of Cho- 



netes comoides .... 113 



12. Diagram of Cm-rent-bedding . 139 



13. Diagram of Ripple -bedding . 142 



14. Diagram of Ripple-di'ift . . 143 



15. Section of the Longmynd . . 185 



16. Sea Ripples .187 



17. Pygidium of Palseopyge Ram- 



sayi 188 



18. Dikelocephalus Minnesotensis 189 



19. Nodular Concretions in Chalk 



FHnts 193 



20. Ideal Section of Rocks near 



Llantrissant 243 



21. Plan of Ancient Mine Work- 



ings in Vein of Haematite 

 Iron Ore, Llanharry . . .254 



22. Map of Part of Yorkshire, Lin- 



colnshire, and Norfolk, show- 

 ing outcrop and range of the 

 Red Chalk 262 



23. Hunstanton Cliff (looking to 



the north) 269 



24. Tertiary Strata at Charlton 



Pit, near Woolwich . . .297 



25. Vixen Tor, Dartmoor, Devon- 



shu-e 301 



26. The Cheesewring, near Lis- 



kierd, Cornwall . . . .302 



