Tables and Rules 



337 



VOLUME TABLE FOR CHESTNUT 



(Graves' Mensuration) 



Dominant trees about 50 years old. 



(Based on 99 trees measured in Milford Pa.) 



TABLE SHOWING RANGE OF DURABILITY OF FENCE 

 POSTS IN MINNESOTA. (AIR-DRY) 



(From "Forestry in Minnesota," by Green) 



Red Cedar 



White Cedar (quartered 6-inch face) .... 



White Oak (6-inch round) 



Red and Black Oak 



Tamarack (Redwood) 



Elm 



Ash, Beech, Maple 



Black Walnut 



White Willow (6" in diameter, peeled and dried) 

 z 



30 years 

 10-15 years 



8 years 

 4 years 



9 years 

 6- 7 years 



4 years 



7-10 years 



6-7 years 



