110 



Jean White : 



Section II. 



Eed Wood 



Internal Diameter Thickness of Wall 



.011 mm. 

 .008 „ 

 .010 „ 

 .010 ,, 

 .009 ,, 

 .011 „ 



Average 

 .009 mm. 



.006 mm. 

 .006 ,, 

 .006 „ 

 .006 ,, 

 .006 ,, 

 .007 ,, 



Average 

 .006 mm. 



White Wood 

 Internal Diameter Thickness of Wall 

 .007 mm. 

 .008 ,, 

 .008 „ 

 .007 ,, 

 .008 ,, 

 •Oil ,, 



Average 



.008 mm. 



Section III. 



Red Wood 

 Internal Diameter Thickness of Wall 



.006 mm. 

 .007 ,. 

 .008 ., 

 .005 ., 

 .005 „ 

 .004 „ 



Average 



.006 mm. 



White Wood 

 Internal Diameter Thicknes of Wall 



.006 mm. 

 .009 ,, 

 .007 ,, 

 .008 ,, 

 .009 „ 

 .008 ,, 



Average 



.008 mm. 



.008 mm. 

 .008 ,, 

 .006 ,, 

 .007 ,, 

 .007 ,, 

 .006 ,, 



Average 

 .007 mm. 



Pinus stpobus. 



Section I. 



Red Wood 

 Internal Diameter Thickness of Wall 



.016 mm. 

 .012 „ 

 .012 ,, 



Average 

 0l;5 mm. 



.005 mm. 

 .003 ,, 

 .004 ,, 



Average 

 .004 mm. 



White Wood 

 Internal Diameter Thickness of Wall 



.014 mm. 

 .012 „ 

 .014 „ 



Average 

 .013 mm. 



.005 mm. 

 .005 ,, 

 .003 ,, 



Average 

 .004 mm. 



Red Wood 



Section II. 



Internal Diameter 

 .015 mm. 

 .014 ,, 

 .012 ., 



Average 

 .014 mm. 



Thickness of Wall 

 .004 mm. 

 .004 ,, 

 .005 ,, 



Average 

 .004 mm. 



White Wood 



Internal Kianieter 



.014 mm. 

 .015 ,, 

 .012 „ 



Average 

 .014 mm. 



Thickness of Wal 



.005 mm. 

 .005 ,, 

 .005 ,, 



Average 



.005 mm. 



