TRICE ONE SHILLING. 
VOL. III. JUNE, 1860. No. 30. 
THE GEOLOGIST; 
AN ILLUSTRATED 
POPULAR MONTHLY MAGAZINE 
OP 
GEOLOGY. 
EDITED BY S. J. MACKIE, P.G.S., F.S.A. 
" Geology, in the magnitude and sublimity of the ohjects of which it treats, 
undoubtedly rauka in the scale of the sciences next to Astronomy." — Henschell : 
Discourse on Study of Natural Philosophy. 
LONDON: 
PUBLISHED AT THE OFFICE OF THE GEOLOGIST, 156, STRAND ; 
BY BALLIERE, NEW YORK; B.DAWSON & SONS, MONTREAL. 
PRIKTED AT IHE OEuLOOiST OFFICE, 15tj, STRAND, LONDON. 
