THE

(Cowards end) also 25-43
out of places (at cad)

QUARTERLY JOURNAL

OF THE

GEOLOGICAL SOCIETY OF LONDON.

EDITED BY

THE ASSISTANT-SECRETARY OF THE GEOLOGICAL SOCIETY.

VOLUME THE FOURTH.

1848.

PART THE FIRST.

PROCEEDINGS OF THE GEOLOGICAL SOCIETY.

LONDON:

LONGMAN, BROWN, GREEN, AND LONGMANS.
PARIS:-FRIED. KLINCKSIECK, 11 RUE DE LILLE; BAUDRY, 9 RUE DU COQ,
PRES LE LOUVRE; LEIPZIG, T. O. WEIGEL.

NEW YORK:-WILEY AND PUTNAM, 161 BROADWAY.
SOLD ALSO AT THE APARTMENTS OF THE SOCIETY.

MDCCCXLVIII.

Page

AUSTEN, R. A. C., Esq. On the Position in the Cretaceous Series
of Beds containing Phosphate of Lime

257

AUSTIN, Thomas, Esq. Observations on the Cystidea of M. Von
Buch, and the Crinoidea generally

291

AVELINE, W. T., Esq. See Ramsay, Prof.

BELLOT, T., Esq. On the Discovery of Coal in the Island of
Labuan, Borneo

Boué, Ami, M.D. On the Geology of some parts of the Alpine and

Mediterranean regions of South-Eastern Europe

BOWERBANK, J. S., Esq. Microscopical Observations on the Struc-

ture of the Bones of Pterodactylus giganteus and other Fossil

Animals

.....

BROWN, Richard, Esq. Description of an upright Lepidodendron

with Stigmaria Roots, in the roof of the Sydney Main Coal, in the

Island of Cape Breton

CLARKE, Rev. W. B. On the Genera and Distribution of Plants in

the Carboniferous System of New South Wales

On the occurrence of Trilobites in New South Wales, with

remarks on the probable age of the formation in which they occur.

DALTON, Grant, Esq., On a Mammoth Tusk fished up off the
Texel

........

DARWIN, Charles, Esq. On the Transportal of Erratic Boulders
from a lower to a higher level

315

DAWES, J. S., Esq. Remarks upon the Internal Structure of Ha-
lonia

289

DAWSON, J. W., Esq. On the New Red Sandstone of Nova Scotia.
EGERTON, Sir P. G., Bart. Palichthyologic Notes supplemental to
the Works of Prof. Agassiz;-On Pterichthys

50

GREGORY, Messrs. J. W. and Francis T. Remarks to accompany
a Geological Map of Western Australia

HAMILTON, William J., Esq. On the Agate Quarries of Oberstein.

HOPKINS, William, Esq. On the Elevation and Denudation of the

District of the Lakes of Cumberland and Westmoreland............

HORNER, Leonard, Esq. Letter to the President on the Discovery
of Saurian Remains in the Saarbrück Coal-field

JOHNS, Rev. C. A. On the Land-slip at the Lizard

JUKES, J. Beete, Esq. Notes on the Geology of the Coasts of Au-

stralia......

.........

and A. R. SELWYN, Esq. Sketch of the Structure of the

country extending from Cader Idris to Moel Siabod in North

Wales....

302

142

209

70

17

193

142

300

LOGAN, J. R., Esq. Notice of the Discovery of Coal on one of the
Islands on the Coast of the Malay Peninsula.....

1

LYCETT, John, Esq. On the Mineral character and Fossil Concho-

logy of the Great Oolite, as it occurs in the Neighbourhood of

Minchinhampton

181

Page

LYELL, Charles, Esq. On the relative Age and Position of the so-

called Nummulite Limestone of Alabama

10

191

MACINTOSH, Colonel. Extract of a Letter from, to J. Carrick

Moore, Esq., on Subsidence of Land in the Bay of Naples.

MANTELL, Dr. G. A. On the Fossil Remains of Birds collected in

various parts of New Zealand by Mr. W. Mantell of Wellington... 225

238

Additional Remarks on the Geological Position of the Depo-

sits in New Zealand which contain Bones of Birds

MORRIS, John, Esq. A description of a new species of Nautilus

(N. Saxbii) from the Lower Greensand of the Isle of Wight ...... 193

NESBIT, J. C., Esq. On the presence of Phosphoric Acid in the

subordinate members of the Chalk Formation

NEWBOLD, Lieut. On the Geology of Egypt.............

262

324

On the Geological Position of the Silicified Wood of the Egyp-

tian and Libyan Deserts, with a description of the Petrified Forest. 349

NICOL, James, Esq. On the Geology of the Silurian Rocks in the

Valley of the Tweed.......

... 195

.............

ORMEROD, G. W., Esq. Outline of the principal Geological Features

of the Salt-field of Cheshire and the adjoining districts

OWEN, Professor. On the Fossil Remains of Mammalia referable

to the genus Palæotherium, and to two genera, Paloplotherium

and Dichodon, hitherto undefined: from the Eocene Sand at

Hordle, Hampshire

.......

Notice of the occurrence of Fossil Remains of the Megaceros

hibernicus and of Castor europæus in the Pleistocene Deposits

forming the Brick-fields at Ilford and Grays-Thurrock, Essex..............

Description of Teeth and portions of Jaws of two extinct

Anthracotherioid Quadrupeds (Hyopotamus vectianus and Hyop.

bovinus) discovered by the Marchioness of Hastings in the Eocene

Deposits on the N.W. coast of the Isle of Wight: with an attempt

to develope Cuvier's idea of the Classification of Pachyderms by

the Number of their Toes

262

17

42

103

RAMSAY, Professor, and W. T. AVELINE, Esq. Sketch of the

Structure of parts of North and South Wales

294

SEDGWICK, Rev. Professor. On the Organic Remains found in the
Skiddaw Slate, with some Remarks on the Classification of the
Older Rocks of Cumberland and Westmoreland

216

SELWYN, A. R., Esq. See Jukes, J. Beete, Esq.

SHARPE, Daniel, Esq. On Trematis, a new genus belonging to the

family of Brachiopodous Mollusca

66

Report on the Fossil Remains of Mollusca from the Palæo-

zoic Formations of the United States contained in the collection

of Charles Lyell, Esq.; with Remarks on the Comparison of the

North American Formations with those of Europe

WESTON, C. H., Esq. On the Geology of Ridgway, near Wey-

mouth

145

245

WIGGINS, John, Esq. On Fossil Bones found in the Crag of Suf-
folk....

294