SPECIES OF WOODS. 



151 



gr., 0.7470; strong (23d in this list); 

 elastic (32d in this list); hard (13th 

 in this list) ; shrinkage, from 4 to 10 

 per cent.; warps and checks consider- 

 ably, unless carefully seasoned; very dur- 

 able, hard to work; splits somewhat 

 hard, very difficult to nail. 



Common TJses : Interior finish, furni- 

 ture, construction, ship building, farm 

 implements, cabinet making. 



Remarks: The most important of 

 American oaks. 



Radial Section, 

 life size. 



Cross-section, 

 magnified 37 y 2 diameters. 



Tangential Section, 

 life size. 



