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. Edin. anp Perth, &c. 



** Ncc arancarum sane textus ideo melior quia ex se fila gignunt, ncc nostcr 

 vilior quia ex alicnis libamus ut apes," Just. Lips. Monit, Polit, lib. i. cap. i. 



VOL. XXXV. 



Tor JANUARY, FEBRUARY, MARCH, APRIL, Mi 



and JUNE, 1810. --"^ ^^ ^ - ,^- ^^ 



[ 



i*\ 





LONDON: 



FEINTED BY RICHARD TAYLOR AND CO., SHOE LANE: 



And sold by Richardsons; Cadell and Da vies; Longman, Hurst, 



Rees, and Orme , Vernor, Hood, and Sharpe; Murray; 



Higuley; Sherwood and Co.; Harding; London; 



Constable and Co. Edinburgh: Brash 



and Reid, and Niven, Glasgow: 



ii GiLBKRT & H0JDG£S,Dublua. 



