CONTENTS. 
Mr. SturGEon on a peculiar Class of Voltaic Phenomena ............... 
Mr. M‘Grecor’s Experiments on Carbonic Acid thrown off from the 
MMPIA EN sak ceits daca eee Rial wilds set bib aieeiule aclcWeu's boas Seleuebwancu Gels. atasnaelee = tse 
Mr. ALEXANDER Bryson’s Description of a New Instrument for Mea- 
suring the Refractive Power of Minute Bodies .........scsscseeeseeeeeees 
Mr. J. J. Grirrin on a New Method of Crystallographic Notation ... 
GEOLOGY. 
Mr. J. Crate on the Coal Formation of the West of Scotland .......... 
Mr. A. C. Ramsay’s Notes taken during the Surveys for the Construc- 
tion of the Geological Model Maps and Sections of the Island of Arran 
Mr. James Smiru’s Observations on the Superficial Beds in the Neigh- 
Dourheod: of Glasgow: :ssscssssssicsasscecdivcvecdssdeceesecsecdedeccscdeceecwae 
Mr. Witi1am Keir on the Geology of Castle Hill, Ardrossan .......... 
Rev. J. M. Fisuer on the Granite Formations of Newabbey, in Galloway 
Mr. D. Mrune on Earthquakes in Scotland ..........c.cececeeecscececeeeeee 
Mr. J. A. Knipz on the Sandstone of the Vale of Solway, and the For- 
mation of the Closeburn Basin, Nithsdale, Dumfries-shire ............ 
Mr.Rovertick Impey Murcuison on the Fishes of the Old Red Sandstone 
Mr. Jamus Yartss’s Account of the Footsteps of extinct Animals ob- 
served in a Quarry in Rathbone-street, Liverpool ...............ececeeees 
Mr. J. E. Bowman on the great development of the Upper Silurian 
Formation in the Vale of Llangollen, North Wales, and on a Plateau 
of Igneous Rocks on the East Flank of the Berwyn range............... 
Mr. Wiii1am Sanpers’s Account of a Raised Sea-beach at Woodspring- 
hill, near Bristol ......c.csccccccevecesccesnes POSS HORE ERO CE Sone CA EEEE SER ASaInAS 
Rev. Davip Wiuuiams on the Older Strata of Devonshire ............... 
Mr. Epwarp Forses on a Pleistocene Tract in the Isle of Man, and 
the relations of its Fauna to that of the neighbouring Sea ........... see 
Mr. Ropericx Impry Murcuison and M. E. pr VerneviL on the 
Stratified Deposits which occupy the Northern and Central Regions 
OM RUSSIOL ssisceesseesaseseccrasestetc’ BS Fhe a SS ed ee 
Mr. R. GrirritH on the Yellow Sandstone, and other points of the 
Geolemy: of Lreland jsssisens. teaeeetssudiesec ves covers. deveceverssesedvecteess 
Mr. Cuarues Lyext on the occurrence of two Species of Shells of the 
genus Conus, in the Lias, or Inferior Oolite near Caen, in N ormandy 
—__——_— on ancient Sea Cliffs and Needles in the Chalk of 
the Valley of the Seine in Normandy ..............ccccccsceececescesesenees 
Professor Acassiz on Glaciers and Boulders in Switzerland 
Capt. BappELzEy on the Geology and Mineralogy of Canada ............ 
Mr.James Rogs’s Remarks upon certain Geological Features of theRiver 
St. John in New Brunswick, with an account of the Falls upwards 
from the Sea, which occur near its Embouchure in the Bay of F undy 
Mr. James Smiru on the Geology of Madeira 
Mr. Grorce GarpNER on the Geology and Fossil Fishes of North 
PEAZIN sce ewancassnsne Sateaeans sekiguacitg sein seeee see Radi uuncuatehsauenssunseteces 
Mr. J. L. B. Isporson on the Daguerreotype, as applied to the Drawing 
PPMMMIEIR NG ces aca claitci Laciaeanon s dager ade esate Asuna MO ER AG hence kc ec ce nee 
Mr. G. H. FratHersTonHaveGH on the Geography of New Brunswick 
Sir J. E. ALExanpErR’s Outline of Three Expeditions which might be 
undertaken to explore portions of the interior of Africa 
Rev. Dr. E. Roprnson’s Additional Notes on the Wadi el ’Arabah in Syria 
M. A. Ravenstet1n’s Observations on Relief Maps .............ceceeceeees 
fe ecceresses 
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