196 



A MANUAL FOR NORTHERN WOODSMEN 



8. Very bunchy timber can be estimated only in bunches 

 or tree by tree. No general system of lines or plots can 

 be trusted to give safe results. 



9. In the emergencies which arise in actual business, 

 a little rough and ready land surveying is often the most 

 vital part of a reliable timber estimate. One or two lines 

 run with compass and chain will frequently check areas 

 of waste land or of different stand in effective fashion. 

 Transit and stadia work on streams or roads often 

 affords very material help. There is continual call for 

 the sort of results that can best be obtained by means of 

 compass and pacing. 



D. PACIFIC COAST METHODS 



Much Pacific Coast timber is 200 feet and over in height 

 and of diameter to correspond, while the stand sometimes 

 passes 20 million feet per quarter section. It is evident, 

 therefore, that because of the values involved intensive 

 methods of cruising are appropriate, while peculiarities 

 of method are suggested by the very size and height of 

 the timber. Of the region as a whole the portion west of 

 the Cascade Mountains in Washington and Oregon, pro- 

 ducing Douglas fir, "Oregon pine" as it was called form- 

 erly, is most active and characteristic, and the following 

 refers to that region unless specified otherwise. 



SUCCESSIVE LOGS IN A FIR 



Adjustment of methods to the conditions is illustrated 

 particularly by the volume tables employed, for those 

 at present in most extensive and responsible use are 



