140 



The Pines of Australia. 



Flg^are 83. — Radial section ol tiiriber wiiii autumnal tracheitis towards 

 the right centre. Portions of three rays are also seen. 

 C. glauca, X 80. 



Figtire 84. — Tangential s<-ciion of timber, showing varying heights of 

 rays and their brown manganese compound contents. 

 C glauca, X 80. 



Fifore 85.— TaiiKciitial vxtion, ^..-^^li.^ • nlarKed portion ol Figure 84. 

 The radial wall» show the bordrred pits in section. C. 

 glaiua, X 160. 



Figure 86. 



-Kadi.il >ecnon o( timb*T shouing the brown manganese 

 compound in the tracheids and ray cells. C. glauca, x 80. 



Radial and tangential sections of timber of C. giauca, R.Br, 



