Vol. 41. 



January 1813. 



FtMshed the Last Day of every Mon/by 

 [PRICE 2s. 6d.] 



THE 



IpHILOSOPHICAL MAGAZINE: 



COMPREHENDING 



THE VARIOUS BRANCHES OF SCIENCE, 



THE LIBERAL AND FINE ARTS, 



GEOLOGY, 



AGRICULTURE, 



MANUFACTURES AND COMMERCE, 



NUMBER CLXXVII. 

 For JANUARY 1813. 



CONTAIKINO THE FOLLOWING ENGRAVINGS: 



1. Pepyb's Mercurial Vojtalc Conductor. 



2. Leslie's Differential Thermometer. 



' BT ALEXANDER TILLOCH, 



M.B.I.A. F.S.A. BDIN. AND PERTH, &C 



LONDON:' 



PHIKTED BV BICHABD TAYLOR AND CO., SHOE tANBt 



K A^\A\.« RirHXBDSONS; Cadell and Davies; Longman, 



H^ST^ErOBMB^BKOWN; MuBaAV; HlGHX-EY; SHHR- 



wLT'a^d'co., Habdiwo, London: Con^tab- and Co 

 Fxlinhurgh: Brash and Rbid, and D. Niven, Uasgow . 

 andGiLUBBT and Hodges, Dublin. 



