INDEX. 



341 



London Sands, 205. 

 Longmynd, rocks of the, 17, 18, 

 19. 



an island, 47. 



Loughton, boring at, 198. 

 Lower Greensand, 166. 

 Lyell, SirCh., 128,324,328. 



M. 



Mackintosh, Mr. D., 285, 289. 



Marr, Mr. J. E., 14, 38. 



Mell Fell conglomerate, 80. 



Menevian Beds, 17. 



Meux's Brewery, boring at, 140. 



Meyer, Mr. C. J. A., 145, 160, 



166, 179. 



Middlesborough, borings at, 103. 

 Midford Sands, 152. 

 Miller, Hugh, sen., 52. 



- Hugh, jun., 302. 

 Millstone Grit, 69, 70, 90, 92, 93, 



95. 

 Miocene epoch, 234. 



geography, 246. 



Moel Tryfaen, 265. 

 Moffat Beds, 33, 42. 

 Morris, Professor J., 169. 

 Morton, Mr. G. H., 77. 

 Mull, lavas of, 209. 

 Murchison, Sir R., 38, 61. 

 Murray, Mr. J., 294. 



N. 



Neocomian group, 163. 



Neolithic man, 300. 



Neozoic rocks, position of, 112. 



oceans, depth of, 333. 



Newark, boring near, 103. 

 Nice, deposits near, 128. 

 Normandy, rocks of, 63. 



Northampton, borings near, 79, 



122. 

 North Sea, origin of, 257, 317. 



shallowing of, 320. 



Norwich Crag, 243, 255. 

 Nummulitic limestones, 227, 332. 



O. 



Oceans, permanence of, 324. 



evolution of, 334. 



Oceanic deposits, 326, 328. 



rarity of among ancient 



rocks, 326, 327. 

 Oceanic islands, 330. 

 Old Red Sandstone, Lower, 50. 



- Upper, 56, 57. 

 Oldhaven Beds, 201. 

 Oligocene deposits, 210. 



geography, 231, 315. 



Oolite, Great, 138, 154. 



Inferior, 138, 152. 



Ooze, oceanic, 326, 328. 

 Orcadie, Lake, 61, 64. 

 Ordovician period, 27. 



geography, 36. 



Ortlieb, Mons., 229. 

 Orton, boring at, 79. 

 Osborne Beds, 211. 

 Overlap, 10. 



Owthorpe, boring at, 103. 

 Oxford Clay, 141. 

 geography of, 155. 



P. 



Palaeolithic gravels, 271. 



man, 292. 



Palaeozoic geographies, uncer- 

 tainty of, 38, 305. 

 seas, depth of, 333. 



