THE 



PHILOSOPHICAL MAGAZINE, 



OR 



ANNALS 



OF 



CHEMISTRY, MATHEMATICS, ASTRONOMY, 



NATURAL HISTORY, AND 



GENERAL SCIENCE. 



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. 



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

 vilior quia ex alienis libamus ut apes." Just. Lips. Moral. Pott.- lib. i. cap. 1. 



VOL. I. 



NEW AND UNITED SERIES OF THE PHILOSOPHICAL MAGAZINE 

 AND ANNALS OF PHILOSOPHY. 



JANUARY-JUNE, 1827. 



PRINTED BY RICHARD TAYLOR, SHOE-LANE : 



AND SOLD IIY LONGMAN, llEES, OHME, BIIOWN, AND GREEN J CADELL ; BALDWIN, 



tRADOCK, AND JOY J SHERWOOD, GILBERT, AND PIPER; SIMFKIN 



AND MARSHALL; UNDERWOOD; W. PHILLIPS; HARDING ; 



HiGHLEY, London: — and by adam bla( k, 



EDINBURGH; SMITH AND SON, GLASGOW; 

 AND HODGES AND M'ARIHI'R, 





