106 FOREST commissioner's REPORT. 



view, let nie, after presenting the notes of a sample acre of 

 virgin land at this point, conduct the reader to some new 

 territory. 



As to the scale put on these trees it should be said that for the 

 hard wood and the large spruce (those above fourteen inches 

 diameter) the figure was set at what it was judged the trees would 

 yield as ordinarily cut and scaled in the locality. A reasona- 

 ble discount for imperfections has to be made. In regard to 

 the small trees it was necessary for the calculations to be 

 made later that they should agree relatively. A method of 

 conversion from cubic feet into board feet had therefore to be 

 devised, as true as might be to the usual or the best practice. 



The same is here used as was used in the case of the Ken- 

 nebec. This supposes the Maine log rule to be employed in 

 scaling and not the Blodgett or New Hampshire rule which, 

 however, is now somewhat extensively employed on the 

 Androscoggin this side of the line. For the principles of this 

 method of conversion see page 50 and also the discussion of 

 scaling in the third section of this report. 



The Blodgett rule gives a larger scale on small logs than 

 does the Maine rule. The ratio between cubic feet standard 

 measure and board feet as read off from the rule is in fact 

 nearlv constant in logs of all sizes. This would affect the 

 percentage rates of increase as worked out in the following 

 discussion, in most cases to depress them to a slight extent. 

 The calculation has been worked throuijh on the basis of values 

 given by the Blodgett rule, but for clearness' sake it is thought 

 best not to publish results. 



