. , CONTENTS. 



NUMBER LXXXVI.-FEBRUARY. 



Page 



Major Sabine's Comparison of the Magnetic Lines of no Dip ^^ 

 Mr?,^S;ni^^Evoh.tionofHe^;byTkermo:EW^ ^^ 



A f " Wni ■ C ■ 7eiVe'«' Preliminary Notice of some Experiments 

 ''r-tt^Ac'iiono? Acetone o/ the Bichloride of Platmum ^^ 



(Platin CWonMV^ -^^-^ - - - — ^^:^r^- ^f' eVr tain Mineral 

 'IbstLTs oftrg^ic Origin. n'os.VI. VII. VIII. Mmeral ^^ 



Cof R^'wri^hfs ■ Meteorological ' Observations during a Resi- 

 denceTn Colombia between the Years 1820 and 1830 .... 95 



Mr T Hopkins's Observations on Malaria, with Suggestions 



''fJ'aSaining its Nature ; read before the Literary and 

 Philosophical Society, Manchester, Nov 15, 18o8 . ..^ 



Prof Forbes on the Colour of Steam under certam Circum- ^^^ 



R^^rS^n aPap^r-inthe PhiiosopWcalMagazine for'De^m- 

 her 1838, on a certain demonstration of Euclid . ■ • 



Notice of the Electrical Excitation of a Leather S rap ^°^- 

 necting the Drums of a Worsted Mill : m a Letter to Dr. ^^^ 



Mr W R. Grove on Voltaic Series and the i^omomauou .. ^^^ 

 Pr^S^^th^'^iSodety.Geoi^^al-Soc^^^^ 



Faraday from the Rev. T. Drury ......-...-• • • • • • • •• • • 



^r W. R. Grove on Voltaic Series and the Combination of 



Gases by Platinum. 



-oceedings of the R( 



Cambridge Philosophical Society ... .... -, , ,52 



Equivalent of Carbon and Composition of Naphthaline lo2 



Composition of Wax ^^g 



Amilen. Oil of Potatoes //Vi 156 



Action of Chloride of Zinc upon Alcohol ^^^ 



Action of Spongy Platina . . • ■ • • • • • • ■ • • • , .g 



Mr. Bravley's Lectures on the Mmeralogy of the Arts 158 



French Expedition of Discovery to the South Polar Seas .... 159 



Curious Habit of Earth-worms • ^^^ 



Meteorological Observations ^^^ 



Table 



NUMBER LXXXVIL— MARCH. 

 Prof. Faraday on the general Magnetic Relations and Charac- 



tcrs of the Metals : Additional Facts 



Dr Kane's Notice on the Theory of the Others • • • • ^ • 1 1>^ 



Mr J. Tovey's Researches in the Undulatory Theory of Light. 



continued ; on the Elliptical Polarization produced by Quartz. ^ ^^ 



Pjy.^; J .' 



Dr. J. M. Winn on a remarkable Property of Arteries consi- ^^^ 

 dered els a cause of Animal Heat 



