Vol. 10. 



AlTGUST 1831. 



No. 56, 



Published the First Bay of every Month.^Price 2s. 6d. 



THE 



PHILOSOPHICAL MAGAZINE 



AND \ 



ANNALS OF PHILOSOPHY: 



COMPREHENDING 



^ THE VARIOUS BRANCHES OF SCIENCE, THE LIBERAL 

 AND FINE ARTS, AGRICULTURE, MANUFACTURES, 

 AND COMMERCE. 



NEW SERIES. 

 No 56.— A U G U S T 1831. 



RICHARD TAYLOR, F.S.A. L.S. G.S. M. Astr. S. &c. 



AND 



RICHARD PHILLIPS, F.R.S.L. &E. F.G.S. &c. 



JLonUon : 



Hi.NTED BY AND FOR HICHARD TAVLOU, BED LION COUKT, »LKEX 8TBEET, 



Printer to the Universittf of London. ^, . , 1 



Sold b, Lonpnan, Rec., 0™c, Brown. »JG-"j, Mfji^/SdcV 



and Son, Glasgow : and HoJ gcs and M Arthur Uumm . 



