THE DIFFERENT PROPERTIES OF WOODS 191 



which the wood was cut, and the amount of resinous material 

 in the cell. 



WEIGHTS 



TABLE SHOWING RELATIVE WEIGHTS or COMMON WOODS 



Hardness. Hardness is resistance offered by wood to hav- 

 ing the fibers pushed apart or indented. It depends principally 

 on the density of the wood. Woods having cells that have 

 thick walls as in hickory are harder than those whose cell 

 walls are thin as in pine. Hardness is a property essential 

 in furniture, so that it will not become indented easily by 

 blows. A floor should be hard as well as strong for the same 



TABLE SHOWING HARDNESS OF THE COMMON WOODS 



