592 Forestry Quarterly. 



BLACK SPRUCE, Picea Mariana. 



St. Maurice Valley, Quebec. 

 Volume in Board Feet by the Quebec Rule. 



Average Stump Height 26" ; Diameter of Top inside Bark 4". 

 Total Height of Trees (Feet) 



46-47 55-6064-68 76-78 81-89 

 Merchantable Length (Feet) 

 D. B. H. 13.5 27 40.5 54 67.5 81 94.5 



171 



SPRUCE — Picea Canadensis & Mariana. 



St. Maurice Valley, Quebec. 



Volume in Board Feet by the Quebec Rule. 



Average Stump Height 26" ; Diameter of Top inside Bark 4". 

 Total Height of Trees (Feet) 



44-47, 52-56, 59-65, 68-78, 83-88, 96-100, 112 

 Merchantable Length (Feet) 



