INDEX TO THE PROCEEDINGS. 



the Potsdam sandstone, Ixxi, Ixxx; 

 the doctrines of progression and non- 

 progression, Ixxi; contributions on 

 the geology of secondary and tertiary 

 rocks, Ixxv; Prof. E. Forbes on the 

 estuary beds and Oxford clay at Loch 

 Staffin in Skye, Ixxv; The Duke of 

 Argyll on the tertiary beds of the Isle 

 of Mull, Ixxvii ; the Museum of Cam- 

 bridge, Ixxix ; the Museum of Prac- 

 tical Geology, Ixxix; note on the 

 lower Silurian foot-tracks, Ixxx; 

 MM. Whitney and Foster on the 

 Lake Superior Land District, Ixxx. 



Hopkins, Mr., on the granitic blocks of 

 the South Highlands, 20. 



, on causes which may have pro- 

 duced changes in the earth's super- 

 ficial temperature, 56. 



Horton flagstone. Prof. Sedgwick on 

 the, 50. 



Hudson's Bay, South, geology of part 

 of, 400. 



Hunt, Mr. T. S., analysis of phosphatic 

 bodies from Canada, 209. 



Huppaye, plastic clay at, 361. 



Ice, agency of, in transport of erratic 

 blocks, 26 ; noticed, xxvi, xxxiv. 



Ichnites in the Old Red of Moray, 97 ; 

 in the Potsdam sandstone, 199, 214 ; 

 in the Wealden, 396. 



Impressions and footprints of Protich- 

 nites. Prof. Owen on the, 214. 



Ingleton Beck, section at, 43. 



Ireland, carboniferous slate of, 7, 8. 



Ixelles, eocene fossils at, 338, 



Jauche, lower landenian beds at, 364 ; 

 plastic clay at, 360. 



Jendrain, lower landenian beds at, 364. 



Jette, fossils at, 333. 



Jones, Mr. Rupert, description of Fora- 

 minifera from the Thanet sands, 267. 



Kent, Mr. Trimmer on the soils of, 273. 



Kidd, Dr., notice of, xxi. 



Kirby, The Rev. W., notice of, xxii. 



Kleyn Spawen beds and their fossils, 

 303. 



Kotah, Deccan, the geology of the 

 neighbourhood of, 230. 



Khmmen, sands of, 309. 



Laeken beds, 332 ; fossils of the, 333. 



Lake Kaminitic, geology of, 401. 



of the Woods, Dr. Bigsby on the 



geology of the, 400. 



Land and freshwater shells, fossil, from 

 Copford, 189. 



Landenian beds, lower, atTournay, &c., 

 361. 



Land shells, extinct, of St. Helena, 197. 



Lateral pressure of rock-masses, no- 

 ticed, Ixxviii. 



Lead Hills, gold district of the, 396. 



Leda substriata, 266. 



Lenita patelloides, 342. 



Lewisham, reversed faults at, 193. 



Library Committee, annual report of 

 the, iii. 



Lille, London clay near, 359. 



, middle eocene beds near, 359. 



Limburg beds, denudation on the, 310 ; 

 lower, 308 ; middle, 304 ; nomen- 

 clature of the, 321 ; upper, 298. 



tertiary series, 298. 



Limulus, Mr, Salter on fossil, 387. 



Lincent, lower landenian beds at, 365. 



Liskeard group of Devonian rocks, 3, 17. 



Lloyd, Dr. G., on some fossil plants 

 from the lower trias of Warwickshire, 

 381. 



Loch Fyne, granitic drift of, 20. 



Lomond, granitic drift of, 20. 



Long, granitic drift of, 20. 



Loess near Kleyn Spawen, 310. 



of the Rhine, Sir C. Lyell on the, 



278. 



— — or Lehm of Belgium, 278. 



Logan, Mr. W. E., on the foot-prints 

 occurring in the Potsdam sandstone 

 of Canada, 199 ; noticed, Ixxi. 



London clay of Belgium, 359. 



Long Scar, Prof. Phillips on the bould- 

 ers on, 53. 



Lower London tertiaries, Mr. Prest- 

 wich on the, 236. 



Lower palaeozoic rocks at the base of 

 the carboniferous chain between 

 Ravenstonedale and Ribblesdale, 35. 



Ludlow bone-bed, 383. 



Ludlow rock, upper, at Hagley Park, 

 381; fossils of the, 384. 



Lyell, Sir C, on the tertiary strata of 

 Belgium and French Flanders, 277. 



Macculloch's Map of Scotland, Mr. 

 Sharpe on the quartz rock of, 120. 



Mammoths in the glacial period, exist- 

 ence of, noticed, xxxv, Ixv. 



Mantell's, Dr., description of the Tel- 

 erpeton Elginense, 100 ; noticed, Ixx ; 

 on supposed fossil ova of Batrachians 

 in the lower Devonian strata of For- 

 farshire, 106. 



Marine zones of depth, Prof. E. Forbes 

 on the, 303. 



Marwood, Devonian fossils at, 8. 



May Hill and Horderley rocks, Prof. 

 Sedgwick on the, 141. 



May Hill beds, fossils of the, 142. 



Mendips, earthquake in the, 234. 



Mica-slate of Cantyre, Prof. J. Nicol on 

 the, 408. 



Mons en Peville, middle eocene beds 

 near, 357; fossils of the, 357. 



Mont Noir, eocene beds at, 324. 



, , fossils of the, 325. 



