CONTENTS. 



Some Observations mads at Clapham Cotnmon, Surrey, on the 

 heavy Storm that took place on the Night oj Sunday the 

 SOthof July I S20 120 



Recent Accounts respecting Pitcairn's Island. . . 124 



Description of the Count De la Boclaye-Marsili.ac's new 

 Discovery in the Art oJ' Dyeing. ,. ., .. 130 



On the Conversion of Animal Matter into new Substances by the 

 Action of Sulphuric Acid. . . . . . . . . 131 



On the Culture of Turnips. . . . . . . . . 137 



A Review of some leading Points in the Official Character and 

 Proceedings of the late President of the Royal Society. 161, 



241 



An Attempt to explain thePh(snomenon known by the Name of 

 the Aurora Bor calls. ., ,. .. ,. 175 



Description of the Percussion Gun-Lock. .. .. 183 



Particulars respecting the Pancratic Eye-Tube. . . 186 



Description of the Mooring Blocks now used in Portsmouth 

 Harbour 188 



Electricity and Galvanism explained on the mechanical Theory 

 of JSlatter and Motion. ,. .. .. .. 195 



The Bakerian Lecture. . . . . . . . . 200 



Remarks on a Newtonian's " Observations on the Phcenomena 

 of the Universe." .. .. .. ., .. 211 



The Results of Observations made af the Observatory of Trinity 

 College, Dublin, for determining the Obliquity of the Ecliptic, 

 and the Maximum of the Aberration of Light. . . 212 



Remarks on the Succession of Rocks in the District of the Lakes. 



257 



Tables of the Planet Venus, including the Perturbations^ 

 originally computed by Reboul, according to the Theory of 

 Laplack, and the Elements o/^Lindenau. Noiv arranged 

 in a more convenient Forin, and adapted to the Meridian of 

 Greenwich .. .. .. .. 261 



On Lithography 282 



Observations on the Phcenomena of the Universe by a Nkvv- 

 . IONIAN, in Answer to the Remarks o/^Philo-Veritatis. 285 



. Tables by the Board of Longitude 288 



- An Account of some Experiments on (he Flexibility and Strength 

 of Stone; 299 



