ELEMENT 



OF 



GEOLOGY. 



DY 



CHARLES LYELL, F.R.S. 



VICE-PRESIDENT OF THE GEOLOGICAL SOCXKTV OF LONDO.V, ETC. 

 AU'iiSOR OF " PilLN-CIPLiT;S OK GEOLOGY." 



t a » philosophy which never m's—'Js i 

 I , :j>'i Will be its startiQg.post to-mnmv-\ 



: of the jmiseDt Treatise ^, l•l'tf'n > 

 ' ;'. ,iiciples of Giit'lix^v,' ariJ, - 

 i'r.ucmles' obscure aiKl (.hHiCi, 

 • rut '>5 i»; ipatiK • vUl) 



b. jjrogress : a point which yetitei Jay was iavisiSis is I'-' g^nl 

 Edin. Rev. 



inii'iv in the form of i suptyeiriftnt to my 



' ■ lOUIld Cl^r'i : 



■ 1 vYa/Js coDsicWi • J ' 

 - .8 and iiideT^ei^vK 

 . ' ■ o>v viiiffA to the ; / 



FSTiST AI^IERTCAN, 

 1^ ROM Ttm FiUST LONDON EDITiON. 



PBILADELPHI A: 

 JAMES KAY, JUN. AND BROTHER, 122 CHESTNUT STREET. 

 rrrTSBDEGH: G. H. KAY & CO. 



