RED GUM 



but is better for paving " (28). " Durable under exposure, but 

 less so than Jarrah: when used for paving does not become so 

 slippery for the horses' feet " (21). Rafters, bridges, floors, 

 shafts, spokes, felloes and rails. Elastic, tough ; does not 

 finish well. Usually confused with Jarrah and other red 

 Eucalypti. 



Authorities. J. Ednie Brown (21), p. 12. Petsch (28), p. 129. 

 Millar's (20), p. i, et seq. Lefroy (59). 



Colour. Very dark red, flesh red or like dried blood. Sap- 

 wood sharply defined from the heart-wood, whitish-brown, f-i 

 inch wide. 



Anatomical Characters. As E. marginata (No. 98), with tha 

 following trifling differences. Transverse section : 



Pores. Conspicuous : some variation in no particular order : 

 few, 4-10 per sq. mm. : oval : appear pinkish in the solid wood. 



Rays. Require the lens : size 5-6 : very numerous, 15-19 

 per mm. 



Rings. Clear where a dense zone adjoins a regular pore-zone, 

 but no definite boundary line : bands of a few or crowded pores. 

 See above. 



Ground-tissue. Coarse and dense by turns. 



Soft-tissue. Encircling, or rather, in patches around, the pores. 



Pith. ? 



Radial Section. Much lighter in colour than above sec., 

 pores conspicuous, coarse, dark brown, often in numbers side by 

 side with occasional drops of red gum ; rays require lens, minute 

 lines or flakes of similar colour to the ground tissue : ring boun- 

 daries imperceptible : soft-tissue in light streaks giving the wood 

 the appearance of animal muscle. 



Tangential Section. The pores very much less conspicuous 

 than in radial section. 



Type specimens authenticated by the Forest Officer to the 

 Government of Western Australia. 



No. 101. RED GUM (of South-western Australia). 



Eucalyptus calophylla. R. Br. 



PLATE VIII. FIG. 65. 



Natural Order. Myrtaceae. 



Alternative Names. Mahogany in Western Australia (12). 

 Fraaiblad Gom-boom in S. Africa (45). 



Sources of Supply. Western Australia. Introduced into 

 South Africa and elsewhere. 



Physical Characters, etc. Recorded dry- weight, 60-61 Ibv JHT 

 cu. ft. Hardness Grade 3, compare Blackthorn, 

 taste none. Burns very well, rather noisily, easily maintains 



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