[ PRICE, WITH SUPPLEMENT, ONE 



SHILLING- AND SLXP 



m 



VOL. IT. 



JUNE, 1861. 



No. 42. 



THE GEOLOGIST 



AN ILLUSTRATED 



POPULAR MONTHLY MAGAZINE 



OP 



GEOLOGY. 



EDITED BY S. J. MACKIE, F.G.S., E.S.A. 



" Geology, in the magnitude and sublimity of the objects of which it treats, 

 undoubtedly ranks in the scale of the sciences next to Astronomy."— Herschell : 

 Discourse on Study of Natural Philosophy. 



LONDON: 



PUBLISHED AT THE OFFICE OF THE GEOLOGIST, 

 25, GOLDEN- SQUARE, RE GENT- STREET, W. 



B ATELIERS, BROTHERS, 400, BROADWAY, NEW YORK j B. DAWSON & SONS, 



MONTREAL. 



MESSRS. J. B. BAILLIERE ET FLLS, RUE HAUTEFEEILLE, PARIS. 

 0. BAILLY BAILLIERE, CALLE DEL PRINCIPE, MADRID. 



PRINTED AT THE GEOLOGIST OFFICE, 22, SOUTHAMPTON-STREET, STRAND, LONDON, 



