CONTENTS. 
_ Dr. G. Kemp on the application of the Principles of a Natural System of Or- 
ganic Chemistry to the Explanation of the Phenomena occurring in the 
Missased Potato WUDelnas ihe sccvecsesseoathantniadeiataldcuiiicecnseasceevecectcou succes de 
Mr. J. PripEaux’s Inquiries into the Extent, Causes and Remedies of Fungi 
destructive in Agriculture........ solves ou susan saeeeeetnee tenes cdaisace vosee ccs Racretcae 
Professor Dauseny’s New Facts bearing on the Chemical Theory of Volcanoes 
Dr. Reape’s Notices of Experiments in Thermo-Electricity............cccsesseeees 
Professor Marrrvcci on the Electrization of Needles in different Media......... 
ses 
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Dr. Lexson on Crystallography and a new Goniometer..,........++5 pie Uta els he's * 
Rey. T. R. Rosinson on the Influence which finely-divided Platina exerts on 
the Electrodes of a Voltameter..........sesscsscsesenscereececsseses He Es seidehemads's 
Mr. John P. Gassior on the Electricity of Tension in the Voltaic Battery ...... 
Prof. W. R. Grove on the Decomposition of Water into its constituent Gases 
by Heat...... eveveees Beek esuaee Seansisiatrat ap wiaiesabicatele cle oisih cthinwcicsmeatibsiaies cs cistalenel 
Dr. Percy’s Notice of a Gas Furnace for Organic Analysis....c...sesesssceessesee 
Sa ae 
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Mr. E. R. J. Knowzzs on an extraordinary appearance in the Flame of a 
Commonatouldcandlerpiisisle.iiesscseces Uusscevectaetsseatavecare codtieadeaatacncds 
GEOLOGY AND PHYSICAL GEOGRAPHY. 
EE SEP E 
Professor GOprert on the Origin of the Coal of Silesia............sccseeceveseeeeees 
Professor ForcHHAMMER on Sea Water, and the Effects of Variation in its Cur- 
_ M. Agasstrz on the Fishes of the London Clay...........c:sseccseeeeeeeeeceneeeeeeees 
_ Mr. J. R. Keezxz on the Artesian Well on the Southampton Common........... 
Rev. W. Buckiawp on the applicability of M. Fauvelle’s mode of boring Arte- 
sian Wells to the Well at Southampton, and to other Wells, and to Sinkings 
for Coal, Salt, and other mineral beds... scccccccccecscssacseccenccecsccccsescsevsvens 
Mr. JosspH Prestwicu, Jun. on the occurrence of Cypris in a part of the 
Tertiary Freshwater Strata of the Isle of Wight.............scsesscsseseecreeeecees 
_ Dr, Firron on the Arrangement and Nomenclature of some of the Subcretaceous 
POEM GAN es sin shtedvicsele oe sna saa -LOUU Spr Gageb6r UR AS BSC CUE ECU n Sep RuH OnE ne SRA Se pases soecreee. = 
_ Mr. W. Hopxrtwns on certain Deviations of the Plumb-line from its Mean Di- 
rection, as observed in the neighbourhood of Shanklin Down, in the Isle of 
_ Wight, during the progress of the Ordnance Survey................ See ep eae acdsee 
. Mr. W. Sanpzrs on Railway Sections made on the Line of the Great Western 
Railway, between Bristol and Taunton ............scsscsssesvescecseceeeserseeensenes 
t Captain IpBETSON on three Sections of the Oolitic Formations on the Great 
Western Railway at the West end of Sapperton Tunnel...................seseee0 
. Mr. James Buckman on the Age of the Silurian Limestone of Hay Head, 
near Barr Beacon, in Staffordshire ..............0c00s See endees Ha aaa eS aE 
——=». 
oo ’s Notice of the Discovery of a new Species of Hypantho- 
crinite in the Upper Silurian Strata..........ccccceceecscsccececeensceeececaecececesees 
Mr. Rozzrr Baxp on the Mushet Band, commonly called the Black-band 
Tronstone of the Coal-field of Scotland...............cscssceseeseeccecssceceeeasensans 
Mr. G. Wareinec Ormerop on the extent of the Northwich Salt-field.......s. 
_ Professor AnsTEp’s Notice of the Coal of India, being an Analysis of a Report 
_ communicated to the Indian Government on this subject 
SO reece ecerese eee seceseses 
Prof. OweEn’s Notices of some Fossil Mammalia of South America.......s.ses0+ 
