September 1827. 



Published the First Day of every Month. — Piice 2s. 6d. 



THE 



PHILOSOPHICAL MAGAZINE 



AND 



ANNALS OF PHILOSOPHY: 



COMPREHENDING 



THE VARIOUS BRANCHES OF SCIENCE, THE LIBERAL 



AND FINE ARTS, AGRICULTURE, VlANUFACTURES, 



AND COMMERCE, 



NEW SERIES. 



N»9.~SEPT EMBER 1837. 



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



AND 



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



PRINTED BY AND FOR HICIIAUD TAYLOR, RED tlON COURT, FLEET STREET: 



And sold by Baldwin, Cradock, and Joy ; Longman, Rees, Ornie, 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. 



