the Jack, do not wait for a fire to open them. They 

 open up in the fall before the cone falls from the tree 

 and spread the seed unprotected upon the ground 

 where it is readily burned up by the next fire. Repro- 

 duction of Jack pine would probably follow the first 

 fire, but the next protective fire would destroy the 

 young growth. 



This objection might be overcome in some sections by 

 prolonging the interval between the fires so as to en- 

 able the trees to grow out of danger. In this section 

 the growth of underbrush is so dense and so rapid that 

 this would not be possible. By the time the trees had 

 reached a safe size the accumulation of brush and litter 

 would have become too great. 



We wish Mr. Kitts every success in his campaign 

 against destructive forest fires, it is a subject that needs 

 the best thought that can be brought to bear on it but 

 we fear that fire lines, patrol and education expensive 

 as they are will have to be our chief reliance in Minne- 

 sota. 



A WORKING PLAN OF ITASCA 

 PARK 



PROF. J. H. ALLISON has completed a preliminary 

 working plan for Itasca Park. Much of the field 

 work was done by the classes of the Forest School dur- 

 ing the past five years. These data, supplemented by 

 Prof. Allison's own field work, have been compiled and 

 transferred to a series of maps which show graphically 

 the exact status of the timber supply. One map shows 



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