404 



THE GUIDE TO NATURE. 



AN EXCELLENT ICE PILLAR. 



For an ideal study of pillar and icicles see 



frontispiece. 



In two hours, field work discontinued; 

 wind rising; snow decorations falling: 

 picture possibilities vanishing; hut cam- 



eras arriving. 



In the dark 

 oper. Workin 



much density, 

 ience. 



room. A dilute devel- 



j for detail without 



The rest at conven- 



ICICLES. 



BY GEO. W. KELLOGG, ROCHESTER, N. Y. 



The illustrations show a soft, readily 

 disintegrated bed of shale, which has 

 receded beneath a hard, resistant 

 strata of lime stone, which, like a shelf, 

 overhangs the base of the shale ex- 

 posure. From the surface drainage 

 above, congealing and accumulating as 

 it trickled from the limestone shelf, the 

 icicles, some being from three to four 

 feet in diameter, have grown until 

 some of them reach the talus below ; 

 and between the ice columns and the 

 rock wall there is ample space and 

 sufficient footing for a person to walk 

 through. The rock conditions here are 

 the same as those at Niagara, and once 

 concealed by the ice formations, one 

 can imagine himself in the Cave of the 

 Winds, or back of the Horseshoe Falls 

 in winter. 



A LUCKY SNAP SHOT. 



Hours of careful posing could not have produced the naturalness. 



Photograph by Charles L. Beckwith. 



