March 1828. 



Published the First Day 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. 



N° 15.— M ARCH 1828. 



BY 



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



AND 



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



ES 



lonflon ; 



PRINTED BY AND FOR RICHARD TAYLOR, RED LION COURT, FLEET STREET : 



And sold by Baldwin and Cradock ; Longman, Rees, Orme, Brown, and 

 Green; Cadell; Sherwood, Gilbert, and Piper; Simpkin and Marshall; 

 Underwood; W.Phillips; Harding; Highley: — and by Adam Black, Edin- 

 burgh ; Smith and Son, Glasgow : and Hodges and M* Arthur, Dublin. 



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