Bui. 606, U. S. Dept. of Agriculture. 



Plate XII. 



Penetration in Red-Heart Beech (Faqus atropunicea). 



1, piece No. 89 treated 30 minutes; 2, piece No. 90 treated 60 minutes; 3, piece No. 91 treated 

 120 minutes. Compare the. penetration in this wood with that shown in Plate VII, show- 

 ing the penetration in white-heart beech. 



