VI 
T 
Temperature of Earth's Crust at Slight 
Depths, 86 
Termant's, Prof. J., Catalogue of British 
Fossils, reviewer!, 90 
Tertiaries of Horn (Lower Austria), 279 
Tertiary Deposits in East Indies, Rev. 
S. Hislop on, 293 
Strata at Peckham, 412 
at Woolwich, Rev. 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 
V 
Vegetable Kingdom, General Group- 
ing of, S. J. Mackie, 384 
Venus'-Haii' Stone, 412 
Vesuvius, Activity of, 87 
Vibrations of the Earth, 259 
Vitriolite, 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 ^f , 
Glamorganshu-e, 24ir - , : ' ^ j 
Weardale, Physical Geologyj of, 38 
Wetherell, N. T., On SmaU Nodular | 
Concretions in Flints, 193 ^, t 
, On some Stem-Plates of 
Bourgueticrinus, 449 
Wliarfedale, Geological Tour in, by Mr. 
Edward Wood, 445 
Wigton, Cumberland, Geology of, 296 
Wiltshu-e, Rev. T., On the Red Chalkof 
England, 261 [ I a! ^ 
Woolwich, Tertiary Strata at, 296 
LIST OF LIGNOGRAPHS. 
LIGN. PAGE. 
1. Section, North Side of Permel- 
lin Bay, beneath Mount 
Flagon 19 
2. Natural Cave on the Hugh . 22 
3. Porphyi-itio Dyke or Elvan- 
course, at WatermUl Bay, 
St. Mary's, Scilly .... 24 
4. Granite Blocks at Perth Hel- 
lick 26 
5. Cast of Dorsal Valve of Cyi-- 
tina septosa 98 
6. Athyris ambigua, internal 
Cast of Dorsal Valve ... 98 
7. Internal Cast of Ventral Valve 98 
8. Intei-ior 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 Current-bedding . 139 
13. Diagram of Ripple-bedding . 142 
14. Diagram of Ripple-drift . . 143 
15. Section of the Longmynd . . 185 
16. Sea Ripples 187 
17. Pygidium of Pateopyge Ram- 
sap 188 
18. Dikelocephalus Mionesotensis 189 
19. Nodular Concretions in Chalk 
Flints 193 
20. Ideal Section of Rocks near 
Llantrissant 243 
21. Plan of Ancient Mine Work- 
ings in Vein of Hasmatite 
Iron Ore, Llanharry . . . 254 
22. Map ofPart 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- 
shire 301 
26. The Cheesewring, near Lis- 
kierd, Cornwall .... 302 
