December 1824. 



Published the Last Day of every Month. — Price 2s. 6d. 



THE 



PHILOSOPHICAL MAGAZINE 



AND JOURNAL: 



COMPREHENDING 



THE VARIOUS BRANCHES OF SCIENCE, 



THE LIBERAL AND FINE ARTS, 



AGRICULTURE, MANUFACTURES, 



AND COMMERCE. 



NUMBER CCCXX. 

 For DECEMBER 1824. 



WITH A PLATE 



Illustrative of Fossil Remains of two new Saurian Animals found 



in America. 



By ALEXANDER TILLOCH, LL.D. 



H.n.I.A. F.S.A. EDIN. ANI> PERTH; CORRESPONDING MEMBER OF THE ROYAL 



ACADEMY OF SCIENCES, MUNICH; AND OF THE ACADEMY OF SCIENCES, 



LITERATURE AND ARTS, LEGHORN, ETC. 



And RICHARD TAYLOR, F.L.S. 



MEMBER OF THE ASTRONOMICAL SOCIETY OF LONDON; OF THE METEOROLO- 

 GICAL SOCIETY; AND OF THE ROYAL ASIATIC SOCIETY 

 OF GREAT BRITAIN AND IRELAND. 



II HI J\>IAMJI.1M. 



LONDON 



HIINTED BY RICHARD TAYLOR, SHOE-LANE : 



Sold 



ild by Cadell; Longman, Hurst, Rees, Ormc, Brown and Green; Caldwin, 

 Cradock, and Joy; Highlcy; Sherwood, Jones, and Co. ; Harding; Under- 

 wood ; Sjrapkk) and Marshall; London: — and by Constable and Co. Edin- 

 burgh ; ami Penman, Glasgow. 



imw^^msMW^^^Mi^mi 



