NOVCMBKR fH23. 



No. 307. 



Published the Last Day of evei-y Monthji^Price 2s. 6d.i 



PHILOSOP 



L MAGAZINE 



AND^JUURNAL: 



COMPREHENDING 



THE VARIOUS BRANCHES OF SCIENCE, 



■ THE LIBERAL AND FINE ARTS, . 



AGRICULTURE, MANUFACTURES, 



AND COMMERCE. 



NUMBER CCCVII. 

 Fo7^ N VE MB E R 1823. 



WITH A PLATE 



Illustrative of Mr. Bahlow's Experiments on Mr. Marsh's 



Tliermo-Electric Apparatus. 



By ALEXANDER TILLOCH, LL.D. 



M.R.^UL. M.O.S. K.A.S. y.S.A. BDIN. ASD PIRTH; CORKESPONDING KIEMBER OF TOT 



COVAL ACADEMY OF SCIENCES, MUNICH; AND OF THE ACADEUT OS 



SCIENCES, LITERATURE AMD ARTS, LEGHORN, ETC. 



And RICHARD TAYLOR, F.L.S. 



KKMBBR OF THB ASTRONOMICAL gOCIETT OF LONDON, AND OF XMB ASIATIC tOCHTT 

 or GREAT SKITAIN AND IRELAND, 



ALKJIC Y- l-LVM^ISM. 



LONDON: 



fRINTED BY BICHAKn TAYLOR, SHOE-LAKE Z 



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