THE 



PHILOSOPHICAL MAGAZINE 



COMPREHENDING 



THE VARIOUS BRANCHES OF SCIENCE, 



THE LIBERAL AND FINE ARTS, 



AGRICULTURE, MANUFACTURES, 



COMMERCE. 



BY ALEXANDER TILLOCH, 



EONORARY MEMBER OF THE ROYAL IRISH ACADEMY, &C. &C. &C. 



" Nec aranearum sane textus iJcp mclior quia ex se fila gignunt, nee nosur 

 ior quia ex alienis libamus ut apes." Just. Lips. M(,nit. J'eUt, lib. i. cap. i. 



VOL. XXIV. 

 Fur FEBRUARY, MARCH, APRIL, and MAY 1800. 



LO N D N: 



Printed by R. TaijluT and Co., 38, Shoe Lam;, FUet Street : 



And sold by Messrs. Ricii.vrdson ; Cadell and D-wiss; Lonoman, 



Hurst, Rees, and Okme; Symonds; Murray; Hichle* ; 



Vekno;i ivr.d Huoo ; Hakdi.sg; London: B£Ll and 



Bkaiuuti, Edinburgh; Brash and Reid, and 



D. NeviN, Glasgow; and Gilbert 



and HooGES, Dublin. 



1806. 





