NOTES. 471 



reservations, except the Lake Temagami, consist of young 

 trees, and it has not been decided what course will be taken 

 to harvest the crop. 



Forestry associations exist in the provinces of Quebec, 

 British Columbia, and also a Dominion association, founded 

 in 1898, which is largely composed of lumbermen, making its 

 future work more hopeful. 



NOTES TO CHAPTER XI. 



In addition to the statistics contained in Chapter II and the 

 notes to that chapter the following additional data may be of 

 interest. The writer must caution readers again that such 

 statistics are not to be conceived as mathematically correct 

 enumerations. Even census statistics may not be considered 

 more than approximations, and contain elements of judgment 

 and estimate. To make them practically useful the informa- 

 tion they contain must be used with discretion ; the information 

 must be completed by estimate, i.e. by "logical inferences 

 from data and relations reported." While the enumerations 

 should be reported by the enumerator exactly, the statistician 

 is justified in rounding off figures, for he is interested merely 

 in relationships which are more clearly brought out by such 

 rounding off. 



Forest Area of the United States by States. 



The subjoined table gives an estimate of the areas which 

 either bear commercially valuable forest or are capable of 

 producing such without effort of man in our generation. 



This table is based upon a similar table prepared by the 

 writer in 1893, corrected upon the basis of the farm area 

 reported by the twelfth census. 



The geographical arrangement and sub-additions have been 

 made with a view of bringing out the relative commercial and 

 economic value of the forest areas. 



