40 



H. B. HUMPHREY AND J. E. WEAVER 



During the month of August, 1910, the greater part of north- 

 ern Idaho and much of eastern Montana were swept by one 

 of the most extensive and destructive forest fires ever experi- 

 enced in that part of the country. In many heavily wooded 



Fig. G. Interior view of a forest burned over about 26 years ago. The older 

 trees are mostly tamarack under which the white fir is especially abundant. 



canons the draft was so violent during the fire and the heat so 



intense as to destroy every vestige of life above ground (fig. 7) . 



The town of St. Maries, Idaho, lies against the slopes of foot- 



