THE 

 LONDON AND EDINBURGH .\ 



PHILOSOPHICAL MAGAZINE 



AND 



JOURNAL OF SCIENCE. 



CONDUCTED BY 



SIR DAVID BRliTVYSTER, K.H. LL.D. F.R.S. L. & E. &c. 

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



AND 



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



v.-./. 



" Nee aranearum sane textus ideo melior quia ex se fila gignunt, nee noster 

 vilior quia ex alienis libamus ut apes." Just. Lips. Monit. Folit. lib. i. cap. 1. 



VOL; L 



NEW AND UNITED SERIES OF THE^PHILOSOPHICAL MAGAZINE 

 AND JOURNAL OF SCIENCE. 



JULY-DECEMBER, 1S32. 



LONDON: 



PRINTED BY RICHARD TAYLOR, RED LION COURT, FLEET STREKT 

 Printer to the University of London. 



SOLD BY LONGMAN, REES, ORME, BROWN, GREEN, AND LONGMAN ;' CADEI.L 

 BALDWIN AND CRADOCK; SHERWOOD, GILBERT, AND PIPER; SIMPKIN 



AND MARSHALL; AND S. HIGHLEY, LONDON: BY ADAM 



BLACK, EDINBURGH; SMITH AND SON, GLASGOW; 



HODGES AND M'ARTHIJU, DUBLIN; 



AND G. G. BENNIS, PARIS. 



