THE GLUING OF WOOD 
57 
)> 
CHAIR LEG 
SECTION OF COL UMN 
Figure 17. — Types of parallel-grain construction : A, Section of airplane 
propeller hub : B, section of table top ; C, section of automobile sill ; 
D, section of door stile or rail ; E, cbair leg ; F, section of grand piano 
rim ; G, section of automobile cowl ; H, wrapped veneer banjo rim ; 
I, pulley rim ; J , section of column 
