Red Wood in Conifers. 



121 



Plant grown veitically. 



Curved stein. Red wood compressed. White wood stretclied 

 and illuminated. 



Thickness of Walls 



Internal Diameter 



Red Wood 

 Average 



.0033 mm. 



White Wood 

 Average 



.0060 mm. 



Red Wood 

 Average 



.0093 mm. 



White Wood 



Average 

 .0096 mm. 



Curved stem. Both sides equally darkened. 



Thickness of Walls Internal Diameter 



Red Wood White Wood 



Average 

 .0060 mm. 



Average 



.0060 mm. 



Red Wood 



Average 



.0100 mm. 



White Wood 

 Average 



.0100 mm. 



Araucaria excelsa. 



Plant grown horizontally. 



White wood on the illuminated side. 



Thickness of Walls 



Red Wood 

 Average 



.0070 mm. 



White Wood 

 Average 



.0090 mm. 



Plant grown upright. 



Both sides equally darkened. 



Thickness of Walls 



Red Wood 

 Average 



.0043 mm. 



White Wood 



Average 

 .0043 mm. 



Internal Diameter 



Red Wood 



Average 



.0175 mm. 



White Wood 



Average 



.0175 mm. 



Internal Diameter 



Red Wood 



Average 



.0140 mm. 



White Wood 

 Average 



.0160 mm. 



Podocarpus elata. 



Plant grown horizontally. 



Whited wood on the illuminated side. 



Thickness of Walls 



Internal Diameter 



Red Wood 

 Average 



.0065 mm. 



White Wood 



Average 

 .0070 mm. 



Red Wood 



.■\verage 



.0120 mm. 



White Wood 



Average 

 .0090 mm. 

 3 



