LIST OF "WOODCUTS. 



571 



PAGE 



Pupa vetusta 178 



Anthracosia acuta 179 



Antliracosia ovalis 179 



My a truncata, with its rough, tube 179 

 Anthracomya senex, with tube and 



foot restored 179 



Aviculopeeten papyraceus . . . 180 



Goniatites Listeri 180 



Productus semireticulatus . . . 180 



Spirorbis carbonarius 181 



Section of Well at Stourrnouth . 213 

 Section of Clay Pit, Newport Pag- 



nell 214 



Section of Stone Pit, Gayhurst . 215 

 Section on the Koega River . . . 239 

 Koega Kopjis, from the South . . 240 

 St. Croix Islands, Sunday's River 241 

 Section of Pleistocene Deposits at 



Biddenham 243 



Section across the Ouse, at Bed- 

 ford 244 



Sandpipes at Grays Thurrock . . 258 

 Section above the Sand-pipes, show- 

 ing the strata through which the 



water percolates 259 



General triangular form of Gravel- 

 pipes, at Grays Thurrock . . . 260 

 Surface of Chalk, showing slight 

 depressions and incipient Sand- 

 pipes 260 



Horizontal Section of a Sand-pipe 261 

 Vertical Section of a Sand-pipe in 

 formation ........ 261 



Vertical Section, in more advanced 



state 261 



Opercula, from Paludina bed, Peck- 

 ham 265 



Mexican flame-shaped Arrow-Head 275 

 Mexican Arrow-Head, of opaque 

 Obsidian ... ..... 275 



Mexican Obsidian Knife or Razor 275 

 Leaf-shaped Knife or Javelin-head 275 

 Mexican Chalcedony Spear-Head . 275 

 Fluted Prism of Obsidian . . .276 

 Aztec Knives or Razors .... 276 



Mexican Arrow-Heads of Obsidian 277 

 Aztec Knife of Chalcedony . . . 278 

 Section at Springbok Vontein . . 282 



Section at Concordia 282 



Section at Koperberg 283 



Plan of the Metalliferous District 



ofNababeel 284 



Map of Amiens District .... 316 

 Section across the Valley of the 



Somme, at Abbeville .... 317 

 Section across the Valley of the 



Somme, at Amiens 317 



Section at Menchecourt, Abbeville 318 



PAGE 



Section at Moidin Quignon, Abbe- 

 ville 319 



Section at St. Acheul, Cagny Road 320 



Section on the Cagny Road . . . 320 



Section near the Monastery St. 

 Acheul 321 



Section on the High Road, St. 

 Acheul 323 



Section of Brick Pit at Hoxne . . 325 



Section across the Waveney, at 

 Hoxne 325 



Map of the Hoxne district . . .326 



Section in South-west Corner of 

 Hoxne brickfield (1859) . . .327 



Dr. Fritsch's Sketch of Bohemian 

 Arenicolite 348 



Plan of the District at Muskham, 

 Newark 351 



Section at Muskham, showing posi- 

 tion of Human Remains . . . 351 



Celt from Neufchatel, in British 

 Museum 353 



Celt from the Valley of the Somme, 

 in British Museum 353 



Large Flint Flake Knife from Men- 

 checourt 361 



Oval-shaped Flint Implement, from 

 the Valley of the Somme . . . 363 



Section of No. 4 Pit, Torbane Hill 372 



Section of Torbane Hill, Mineral in 

 No. 9 Pit 372 



Stone Hatchet found in Skull of 

 Irish Elk 382 



Section of Celt, showing the slope 

 of large end 382 



Section of Old Red Formation at 

 Kincardine 383 



Ideal Composition of the Clytia 

 Leachii (Fig. 2) 394 



The same, seen sideways (Fig. 1) . 394 



Diagram, showing Influence of the 

 Earth's Attraction on the Water 

 and Atmosphere of the Moon . 410 



Plantain ore's Drawings of the Solar 

 Eclipse of 1860 410 



Knockshigowna Hill, from the 

 West 445 



Diagrammatic Cross - Section of 

 Knockshigowna 446 



Map of Coast of Torbay .... 448 



Section at Torbay, showing En- 

 croachment of the Sea .... 449 



Natural Arch at Torbay .... 449 



Vertical Section of the Bone-cave 

 Hill, at Brixham 456 



Position of back and left side of 

 Quarry at Brixham .... 457 



Dike in Quarry at Brixham . . . 458 



