

10 



YIELD FROM EUCALYPTUS 



Table II shows the average volume in board feet of different sized 

 blue gum, as scaled by the Scribner decimal rule. 



TABLE II. Volume Table for Blue Gum (Eucalyptus globulus). Seedlings and Sprouts. 



The above table is based on the measurements of 672 felled trees. 

 The diameter inside the bark was measured every 10 feet along the 

 stem, and the scale was obtained by referring to a Scribner decimal 

 log rule. All logs having a diameter of 5.5 inches or more inside the 

 bark at the small end were scaled. Logs smaller than 5.5 inches in 

 diameter inside the bark were considered too small to scale for lumber. 



The Scribner decimal log rule was used because it is the fairest rule 

 in common use for scaling small logs, as may be seen from the follow- 

 ing table: 



TABLE III. Comparison of Log Rules for Board Measure. 



Twelve-foot logs. 



Diameter in inches. 



While the Spaulding rule is the legal rule in California, it was 

 intended primarily for scaling conifers, and gives no values for logs 

 less than 10 inches in diameter. 



