PRICE ONE SHILLING. 
VOL. III. JANUARY, 1860. No. 25. 
THE GEOLOGIST; 
AN ILLUSTRATED 
POPULAR MONTHLY MAGAZINE 
OP 
GEOLOGY. 
EDITED BY S. J. MACKIE, F.G.S., F.S.A. 
I 
■^Kindoubtedly ranks in the scale of the scieuces next to Astronomy." — Herscliell: 
Discourse On Study of Natural Philosophy. 
LONDON : 
PUBLISHED AT THE OFFICE OF THE GEOLOGIST, 154, STKAND. 
PP'NTBD AT WIE OEOLOGIST OFFICR, 154, 8TRAKD, LONDON. 
