vi TABLE OF CONTENTS. 
Page 
OwEn, Sir RicHarD. Ona Labyrinthodont Amphibian (Rhytidosteus 
capensis) from the Trias of the Orange Free State, Cape of 
Good Hope. ‘(Plates XVI. & XVIL) fot. ee. 333 
Parkinson, C., Esq. The Droitwich Brine-springs and Saliferous 
MATS A sp oan biyae te eee le eee a see ones oe 248 
Pennine, W. H., Esq. Sketch of the High-level Coal-fields of 
pouth AfiCa cosas cae cs bee viele sean 2 ee oer 658 
Reape, T. Metuarp, Esq. A Delta in Miniature—Twenty-seven 
Wears: Wong os sc ccus so iale <n oe cle nyeke ke genete este net rr 263 
——. Ripple-marks in Drift in Shropshire and Cheshire ...... 267 
Further Notes on Rock-fragments from the South of Scot- 
land imbedded in the Low-level Boulder-clay of Lancashire .. 270 
Roserts, THomas, Esq. On anew Species of Conoceras from the 
Llanvirn Beds, Abereiddy, Pembrokeshire. (Plate XXVIII.).. 636 
RutTiey, FRANK, Esq. On Strain in connexion with Crystallization 
and the Development of Perlitic Structure. (Plate XVIII) .. 340 
SHRUBSOLE, G. W., Hsq., and G. R. Vine, Esq. The Silurian 
Species of Gilauconome, and a suggested Classification of the 
Paleozoic Polyzoa. 2.6.0.0 cc. neces tects «pele 329 
Smitu, G. V., Esq. On further Discoveries of the Footprints of 
Vertebrate Animals in the Lower New Red Sandstone of Penrith. 479 
SPEARING, H.G., Esq. On the Recent Encroachment of the Sea at 
Westward Ho!, North Devon ............0+..++esseeeeeee ATA 
Traut, J. J. H., Esq. Petrological Notes on some North-of-Eng-. 
land Dykes. (Plates XII. & clas id ee hos geld op er 209 
. On the Chemical and Microscopical Characters of the 
Whin Sill: (@late XXIX) .. 2 Se... ss 640 
Toms, R. F., Esq. A Comparative and Critical Revision of the 
Madreporaria of the White Lias of the Middle and Western 
Counties of England, and of those of the Conglomerate at the 
base of the South-Wales Lias. (Plate XIX.) .............. 353 
A Critical and Descriptive List of the Oolitic a 
of the Boulonnais. (Plate XX) 7 .a2. sa) ee 698 
VinzE, G. R., Esq., and G. W. SHrussote, Esq. The Silurian 
Species of Glauconome, and a suggested Classification of the 
Palesoznie Polyzoa’,...... «Seas een ee ees aes Oe 329 
———. Polyzoa (Bryozoa) found in the Boring at Richmond, 
DUTTCY yo ae siwire 4 bis pod wo eee oes GR ea 2 eee ecko 784 
