August 10, 1921 



HARDWOOD RECORD 



17 



I 



ntU« 3 (oentlnuO 



Aotnal *nd C«np»rallT» Data on th» Propertlai of Torlou* Wood* 



Comparoliw Ii'ita Mnsd on ATflru<j«B for 4.f;«rii ^«A urA *hlt» Oale -roo[« 



CT*bl« 'lontftlM 111 Kutl-ro WoodB Cpon Whloh CMoi.l«t« C9m»rablo t«uto (»r« AraUaUv) 



onces within the species, some of which are difficult to account for. 

 It is important to note, however, that in so far as the oaks are con- 

 cerned, there is but little difference between the mechanical prop- 

 erties of the white and r.>.l oak groups; the white oaks average 



slightly harder tluui the red oaks, and the red oaks are slightly 

 stiffer. 



Durability 

 Decay in timber is due to the action of fungi on the wood sub- 



