THE 



PHILOSOPHICAL MAGAZINE 



COMPREHENDING 



THE VARIOUS BRANCHES OF SCIENCE, 



THE LIBERAL AND FINE ARTS, 



GEOLOGY, AGRICULTURE, 



MANUFACTURES AND COMMERCE. 



BY ALEXANDER TILLOCH, 



M.R.I.A. F.S.A. Euin. and Perth, &c. 



u Nee afanrarum sane textus ideo melior quia ex se fila glgnunt, nee noster 

 ilior quia ex alienis libamus ut apes." Just. Lips. JMunit. Folit* lib. i, cap. i. 



VOL. XXXVI. 



For JULY, AUGUST, SEPTEMBER, OCTOBER, NOVEMBER, 

 and DECEMBER, 1810. 



-> .ft- • )pv ?S°4> 



LO N D O N: 



PRINTED BY RICHARD TAYLOR AND CO., SHO 



And sold by Richaudsons ij Cadell and Da vies; Longman, Hurst, 



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