INDEX. 



743 



Mingan Islands, account of the limestone columns, 



93. 

 ^ a succession of beaches, 



9 a. 



• inferences respecting, 93. 

 - effects of drift, on the 



columns. 95. 



to Cape Whittle, account of the 



coast from the, 99. 

 Michell, Rev. John, extracts from his memoir on 



volcanos, 606 note, 613 note, 615 note, 620. 

 Mitchell, Dr., observations on the cliffs in the 



neighbourhood of Harwich, 259. 

 Moen, on the cretaceous and tertiary strata in 



the island of, 243. 

 description of the chalk and boulder 



formation of, 252. 

 . cliffs on the coast 



of, 253. 

 explanation of masses of clay and sand in 



the chalk of, 256. 

 Monkey, fossil, on the remains of a, from the 



tertiary strata of the Sevalik Hills, 499. 

 Moore, Dr., notice of fossils found by, 657 



note. 

 Morris, Mr. John, notices of fossil plants de- 

 scribed by, 327, 488 note, also description of 



the plates. 

 Morte Bay, notices of the formation composing 



the cliffs of, 647. 

 Morte slates, or fourth group of North Devon, 



range of, described, 642. 



separable into two divisions, 642. 



. lower, abound in chlo- 



ritic schist, 642, 647. 



upper, abound in arena- 



ceous beds, 642, 647. 

 Mould, on the formation of, 505. 

 Mount Argaeus, structure of, and surrounding 



district, described, 594. 

 Batten, notice of the strata composing, 



657. 



Leinster, height of, 6. 



Mountain chains, observations on the formation 



of, as effects of the same power by which 



continents are elevated, 60 h 



Mountain chains, observations respecting the 

 axes of, 619. 



theoretical considerations on 



the slow elevation of, 625. 



the earthquake of Concepcion, 



20th Feb., probably marked one step in the 

 elevation of a mountain chain, 628. 



Mountains, heights of the principal, in the south- 

 east of Antrim, 69. 



Moy river, notice of its course, 151. 



Moyne, account of an oolitic variety of car- 

 boniferous limestone between Rathrea and, 

 155. 



. section of the calcareous shale and grit 



near, 157. 



Muckruss, account of the copper mine of, 

 29. 



Mudstone Sands, description of the strata in the 

 cliff of, 652, 659, 660 note. 



Mulatto, account of, in Antrim, 78. 



Mullach-fin-ooar, notices of the hill of, 76, SO, 

 81. 



Munster coal-fields, poor in iron ore, 66. 



Murchison, R. I., Esq., notice of marine shells 

 discovered by, in the drift of Salop, &c., 462 

 note, 



reference to his account 



of dikes of quartz rock and calcareous grit in 

 Scotland, 600 note. 



. and Sedgwick, Rev 



Prof, description of a raised beach in Barn 



staple or Bideford Bay, 279. 

 — and Sedgwick, Rev 



Prof, on the physical structure of Devonshire 



&c., 633, 688. 

 ■ and Strickland, H. E 



Esq., on the upper formations of the new-red 

 sandstone system, in Gloucestershire, Worces- 

 tershire, and Warwickshire, 331. 



Muriate of soda, notice of an efflorescence of, on 

 the first ridge of hills stretching down from 

 Mount Argaeus, 595, 



Murlogh Bay, notices of formations in, 71, 74, 

 76, 77, 79, 80. 



Muschelkalk, probable representative of, in 

 Shropshire, 346. 



