502 



INDEX. 



Loess, relative age of the, 469. 



probably the production of some vast 



flood, 469. 

 Lonchopteris Mantelli, said to have been found at 



Wansford in Northamptonshire, 309; doubtful, 



383*. 



Lonsdale, William, F.G.S., notice of his examina- 

 tion of the Oolitic series, near Bath, 261. 



, lines of sections by, 



in Geol. Trans. 2nd Series, vol. iii. ; Map, 

 Plate IX., 261, note. 



, sections by, near 



Calne, Plate X. a. No. 15 and 16, 261. 



Lower new red sandstone, overlying Whitehaven 

 coal-field, compared with that of the Yorkshire 

 and Durham coal-fields, 397. 



, of Yorkshire and Dur- 

 ham, in some places conformable, in some un- 

 conformable to coal measures, 397, 401. 



, near Whitehaven, ex- 



cavated prior to the deposition of the magne- 



sian conglomerate, 398. 

 conformable 



to the coal measures on the coast ; unconform- 

 able in the interior, 397. 

 Lulworth Cove, section of, east side, 216. 



—, inclined strata near, 14. 



, inference from, 



respecting the trees of the dirt-bed, 15. 

 Lunn, Francis, Esq., on the confines of part of 



Huntingdonshire and Cambridgeshire, 303, 



note. 

 Lydden Spout, near Folkstone, Kent, issues from 



the lowest chalk, 106. 

 Lyell, Charles, Esq., P.G.S., observations by, on 



the effect of earthquakes at the mouth of the 



Indus, 226. 

 , observations on the 



loess in the higher parts of the valley of the 



Rhine, 475, 477. 

 Lynn, West Norfolk, deep well at, in the Kim- 



meridge and Oxford clays, 310. 



M. 



MXauchlan, Mr., observations by, on the chalk of 



Bedfordshire and Cambridgeshire, 303, 304. 



M'Lauchlan, and Glaisher, Messrs., list of heights 

 by, in Cambridgeshire, 370. 



Magnesian conglomerate and limestone, descrip- 

 tion of near Barrowmouth, 395. 



of the coast near White- 

 haven compared with that of Nottinghamshire, 

 Yorkshire, and Durham, 398. 



of Bristol coal-field equi- 

 valent of magnesian limestone and not of rothe 

 todte liegende, 399, 400. 



Mahr, in the Konkun, hot springs at, 427. 



Maidstone, remains of Iguanodon found near, 

 132, note. 



, large Scaphites found near, 339. 



" Malm," a mass so called at Garsington, Oxford- 

 shire, belonging to the Purbeck series, 277. 



"Malm-land", and " malm-rock", in Surrey, what, 

 154, 7iote. 



rock", in Hampshire, supposed to be di- 

 stinguished by its fossils, 154. 



Man-of-War Cove, section at, 217. 



Mantell, Gideon, F.G.S., Hyteosaurus, a new- 

 genus of reptiles, discovered by, 179. 



— ■^— — — , his observations on 



remains of the Iguanodon found near Maid- 

 stone, 132, note. 



ascertains that bones 



of birds exist in the Hastings-sand, 382*. 



Mantell, Mr. Walter, a new fossil species of Unio 

 found by, 179. 



Marshes of Huntingdonshire and Cambridgeshire, 

 remarks upon, 304. 



Martin, P. I., F.G.S. The term " Wealden" 

 proposed by, 103. 



, his observations on West- 

 ern Sussex, 155. 



on the drainage of the 



Wealden Valleys, 150. 



, beds subordinate to the 



Weald clay carefully traced by, 160. 

 , section by, through West 



Sussex (Plate X. a. No. 5.), 155. 

 Maryport to St. Bees Head, country almost 



wholly composed of coal measures, 388. 

 Menzale, description of the lake of, 12, note. 

 Merian, M., marine deposit of pisolitic iron ore, 



