iV TABLE OF CONTENTS. 
LYELL, Charles, Esq. On the relative Age and Position of the so- 
called Nummulite Limestone of Alabama ..........:.sesseccaceeenenees 
Macintosu, Colonel. Extract of a Letter from, to J. Carrick 
Moore, Esq., on Subsidence of Land in the Bay of Naples.......... 
MAnNnTELL, Dr. G. A. On the Fossil Remains of Birds collected in 
various parts of New Zealand by Mr. W. Mantell of Wellington... 
——. Additional Remarks on the Geological Position of the Depo- 
sits in New Zealand which contain Bones of Birds ...............0++ 
Morris, John, Esq. A description of a new species of Nautilus 
(N. Saxbii) from the Lower Greensand of the Isle of Wight ...... 
Nessit, J. C., Esq. On the presence of Phosphoric Acid in the 
subordinate members of the Chalk Formation ................sesseee 
NEWBOLD, Lieut. On the Geology of Egypt...........scssesecsceeees 
On the Geological Position of the Silicified Wood of the Egyp- 
tian and Libyan Deserts, with a description of the Petrified Forest. 
Nico, James, Esq. On the Geology of the Silurian Rocks in the 
Valley of the Tweed ......<..s...0<s0s000++s0s000+5 +» ana2ehiEee ene 
OrmMeEROD, 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 Paleotherium, and to two genera, Paloplotherium 
and Dichodon, hitherto undefined: from the Eocene Sand at 
Hordle, Hampshire. ...0.. 00: ustedes thsecon ae scu snes an see eee 
Notice of the occurrence of Fossil Remains of the Megaceros 
hibernicus and of Castor europeus mm 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 © ........05...c0s00c0s00s 0000000 
Ramsay, Professor, and W. T. AvELINE, Esq. Sketch of the 
Structure of parts of North and South Wales ............seseeeeeeee 
Sepewick, 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 ............ ope Cee 
Setwyn, A. R., Esq. See Jukes, J. Beete, Esq. 
SHARPE, Daniel, Esq. On Trematis, a new genus belonging to the 
family.of Brachiopodous Mollusca ...........0:ss000:0r0sssessiaeaaneeee 
Report on the Fossil Remains of Mollusca from the Palzo- 
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 ........sssseesses 
Weston, C. H., Esq. On the Geology of Ridgway, near Wey- 
DOWER: « oncdiekewnnehadrcamundiemmampnbla> Eawspcses aqabeoeee ain ac 
Wieatns, John, Esq. On Fossil Bones found in the Crag of Suf- 
BON ccsic'swoncne cic amtare oleptesierote arian Ob ene ook SRK Gee a eee ineceeaeee 
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