CONTENTS. XI 



Pago 

 Mr. James Howell on the Miucrtals lately found in tlio Draiuage-works at 



Brighton lOS 



on Super-Cretaceous Formations in the Neighbourhood 



of Brighton 100 



Professor Edward Hull on the Trachyte Porphjiies of Antrim and Down, 

 in the North of Ireland Ill 



on the Raised Beach of the North-east of Ireland . . 113 



Mr. J. GrWYN Jeffreys on Submarine Explorations, with reference to 

 M. Delesse's work entitled " Lithologie du fond des Mers " llo 



Mr. J. W. JuDD on the Discovery of Cretaceous Hocks in the Islands of Mull 

 and Inch Kenneth 115 



Mr. G. A. Lebour on the Geological Distribution of Goitre in England .... llo 



Mr. J. E. Lee on Veins or Fissures in the Keuper, filled with Rhretic bone-bed, 

 at Goldcliffe in Monmouthshire , 110 



Mr. "William Molyneux on the Occurrence of Copper- and Lead-ores in the 

 Bunter Conglomerates of Cannock Chase 116 



Mr. C. Moore on the Presence of Naked Echinodermata (Holofhitria) in the 

 Inferior Oolite and Lias 117 



Dr. H. Alleyne Nicholson on the Geology of the Thunder Bay and Sha- 

 bendowan Mining-Districts, on the North Shore of Lake Superior 118 



on Orionia, a new Genus of Fossil Tubicolar 



Anuelides, with Notes on the Genus TcntacuUtes 118 



Mr. W. Pengelly on Machairodus laticlens found by the Rev. J. MacEuery 

 in Kent's Cavern, Torquay 119 



Herr G. voii Rath on a remarkable Block of Lava ejected by Vesuvius at 

 the Great Eruption, April 1872, which proves the formation of Silicates 

 through Sublimation 120 



Mr. T. A. Readwin on the Coal- and Iron-Mines of the Arigna District of 

 the Counaught Coal-measm-es, Ireland 122 



Mr. H. G. Seeley on the Occurrence of a British Fossil Zeuc/lochn at Barton, 

 Hants 122 



Dr. Robert Sur on certain Quartz-Nodules occiuTing in the Crj'stallino 

 Schists near Killin, Perthshire 122 



Mr. W. Topley on the Sub-Wealden Exploration 122 



The Rev. Canon Tristram on the Geology of Moab 123 



Dr. T. Ogier AVard on the Formation and Stratification of Sedimentary Rocks 123 



on pSlickensides, or Rubbed, Polished, or Striated Roclis 123 



BIOLOGY. 



Address by Sir John Lubbock, Bart., M.P., F.R.S., Vice-Chancellor of the 

 University of London, President of the Section 123 



Botany. 



Mr. W. Carruthers on Traquairia, a Radiolarian Rhizopod from the Coal- 

 measures 12G 



Mr. C. F. Dennet on Ramie, a new Textile Plant ; with Description of its 

 Uses, Mode of Propagation, Cultivation, as practised in the Southern United 

 States of America 12G 



