74 



SPARKS FROM A GEOLOGIST S HAMMER. 



tered in the route to Mont Blanc. Pyramidal towers of 

 ice "are uplifted before us to the height of 20 to 50 feet. 

 S^racs, rising in glittering columns, seem tottering from 

 their base. Some, even, by the thawing action of the sun, 

 rest on bases less in diameter than themselves, ruined 

 pillars of gigantic fairy palaces, a very Persepolis of ice. 



SERACS NEAR THE JUNCTION OP GLACIERS DES BOSSONS AND DE 

 TACONNAY. FROM A PHOTOGRAPH BY J. LEVY ET CIE., PARIS. 



All about us are effects on a scale of masfnitude which 

 almost staggers the understanding. It seems as if a sea 

 had been solidified, then lifted up into the air and dashed 

 upon the rocks. 



These tremendous effects, however, have been achieved 

 by the agency of forces at work before our eyes, and be- 



