CONTENTS. 
‘GEOLOGY AND PHYSICAL GEOGRAPHY. 
aie 
Mr. Spence Bate on Fossil Remains recently discovered in Bacon Hole, 
Gower ; also other Remains from beneath the Bed of the River Tawey.... 
Dr. BExe on the Sources of the Nile in the Mountains of the Moon............. 
Mr. Cuarzes!Bunsury on the occurrence in the Tarentaise of certain species 
| of Fossil Plants of the Carboniferous Period, associated in the same bed with 
| Belemnites...........000- hep Retin chtnaameckne sn Renee husasns tongs BineW onatendaaseencde nase 3 
Mr. Sraruine Benson on a Boulder of Cannel Coal found in a vein of com- 
MG: DItMMINOUS Coal ica. ...censacescoesasassaseesscarsprangntseaestenias SCeoRacer cence 
————— on the relative Position of the various Qualities of Coal 
in the South-Wales Coal-Measures .........sscsssesscscscsscscnsrecscsneesccessecenes 
Mr. Joszpu Bonomt’s Notice of a Map of Ancient Egypt of the Time of An- 
Sea EE TI rie cncic cele uiiys Usais sadids'o acs alesse asives an cle dias gayonichceacesberete deen a 
_ Professor Buckman on the Discovery of some Remains of the Fossil ae: in 
the Lias of Gloucestershire ...... “epheber pleldaes eciswecielie'e sata ASE EEA ALE 
—_— on some Experimental Borings in search of Coal ......... 
_ Dr. Carpenter on Marginopora and allied Structures.........scessseseseseseceeees 
_ Mr. Wittiam Cunnineton ona Peculiarity in the Structure of one of the 
Fossil Sponges of the Chalk, Choanites Kénigi, Mantell..............00+ Sonieapitics 
_ Dr. Davusrny’s Reply to an Objection of Mr. Hopkins to the ‘ Chemical Theory 
of Volcanos,’ contained in the last volume of the Transactions...... eseccsenane : 
Professor E. Forszs’s Notice of Discoveries among the British Cystidee, made 
b since the last Meeting ..........00005 eadn a Manaet seleaniasinesa tala nade ssntacasekbebaliss 
_Mr. Evan Hopkins on the Polarity of Cleavage Planes, their conducting 
Power, and their Influence on Metalliferous Deposits .......ssssesseseeee Penns 
Capt. L. L. Boscawen IssEtson on the Position of the Chloritic Marl or 
Phosphate of Lime Bed in the Isle of Wight ...........:ssscecssseseeeenseees eae 
_Mr. A. Mitwarp’s Account of an extensive Mud-slide in the ialawa of Malta 
——_————— attempt to illustrate the Origin of ‘‘ Dirt-bands” on 
Glaciers .......cssseeeessesseeneeenees Tere Bensiaduianse ssealneacee Gaueesses 
“Mr. W. Morean on some esl found in the Bed of the Tame aes eliabawaet 
‘Mr. F. Moses on the Subsidences which have taken place in the Mineral Raain 
of South Wales, between the Llynvi Valley on the East, and Penllergare on 
P Professor OLDHAM on ioe Sealey of the Connés of Wicklow...... gageitapabines 
ir. G. W. OrmeErop on the Drainage of a Portion of Chat Moss ...... sha deaaee 
Mr. Aueustus PeTERMANN on the Hydrography of the British Isles............ 
E rofessor Ramsay on pome points connected with the Physical Geology of the 
Silurian district between Builth and Pen-y-bont, Radnorshire ........... Faens et 
Professor H. D. Rogers on the Geology of Pennsylvania........... PIAS medncite> 
‘Mr. Wituram Price Struvz’s Observations on the Great Anticlinal Line of 
the Mineral Basin of South Wales .........csececesseeeeeeeee paudtinsaals aces ances Nadas 
Mt. FrerpINAND WERNE’s Remarks on the Sources of the White Nile (com- 
2 municated by Sir Robert H. Schomburgk) ....... TENORS Penoenseee mbncasedeusn a 
Rey. D. Wittrams’s Supplemental Notice on the Geology of Lundy Island . 
‘Sir H. T. Dz 1a Becue on the Geology of portions of South Wales, iaseese 
_ tershire, and Somersetshire cversecscesseceseceees sae vaccigatcndiics anal siacesdee vanddtinas 
