

Photograph by J. W. Shipley 

 WORK OF THE GREAT FLOOD IN THE KATMAI VALLEY 



A stream flowing between Katmai Volcano and its neighbor had piled up an immense dam 

 across the valley. Behind the dam a vast lake accumulated. Then the dam burst and the 

 torrent, like a Johnstown flood, rushed seaward. For miles, where thick forests had stood, 

 the trees were sheared off at the surface of the ash. The few trees which remained were bent, 

 twisted, splintered, and broken in every describable manner (see the story of this flood in 

 the January, 1917, Geographic). 



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Photograph by D. B. Church 



A CHEMICAL LABORATORY IN THE KATMAI REGION 



Only a chemist can understand the difficulties of making quantitative analyses whei 

 must carry his laboratory on his back 



ire. one 



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