THE 



PHILOSOPHICAL MAGAZINE 



COMPREHENDING 



THE VARIOUS BRANCHES OF SCIENCE, 



THE LIBERAL AND FINE ARTS, 



AGRICULTURE, MANUFACTURES, 



AND 



COMMERCE. 



BY ALEXANDER TILLOCH, 



KOKORABY MEMBER OF THE ROYAL IRISH ACADEMY, &C. &C. fifC, 



" Nec aranearum sane teitus Jdeo melior quia er se fila glgnimt, nee noster 

 vilior ^uia ex alienis libamus ut apes." Just. Lips, Monit. I'olit^ Jj J ai^V^^ aa. i . 



VOL. XXIII. ^c'v' ■,■;^^^^ 



For OCTOBER, NOVEMBER, and DECEMBER^ISOS; 

 and JANUARY 1806. 



LONDON: 



Printed by R. Taylor and Co., 38, Shoe Lane, Fleet Street : 



And kold by Messrs. Richardson; Cadell and Davies; Longman, 



Hurst, Rees, and Or.me; Svmonds; Murray; Highi.ey ; 



ViRNOR and Hood; Harding; London: Dell and 



SRADfUTz, Edinbui'gh ; Brash and Reid, and 



D. Nevin, Glasgow; and Gilbert 



and HoDcr.s, Dublin. 



180G. 



