194 



He deals in detail with the following species : — 



E. marginala (Jarrah). 



E. resinifera (Red Mahogany). 



E. diversicolor, versicolor by a slip (Karri). 



E. ealophylla (Western Australian Red Gum). 



E. loxophleba (fcecunda) (York Gum). 



E: salubris (Gimlet Wood). 



E. gompliocepltala (Tuart). 



E. hemiphloia (Box). 



E. pilularis (Blackbutt). 



E. globulus (Tasmanian Blue Gum). 



E. patens (Western Australian Blackbutt). 



E. salmonophloia (Salmon Gum). 



E. longicornis (Morrell). 



Thirteen species in all, and nine of them confined to Western Australia. This 

 probably arises from the fact that Western Australian timbers are, as a rule, more 

 gregarious than those of the eastern States, and also because the Western Australian 

 Government is very keen on propagandist work in regard to its timbers. 



One example will show Mr. Stone's method of treatment of a timber. I take 



E. marginala : — 



Grain. — Coarse, open-sinuou=, surface rather dull. The ground tissue the brightest portion, the 

 pores and rays very dull. 



Anatomical Characters. — Transverse section. 



Colour. — Very dark chocolate, or the colour of dried blood with black zones here and there; runs 

 lighter in colour at times. Sapwood brownish, ecru; § to f inch wide, well-defined from the heart. 



Pores. — Clear in certain lights in dark pieces, clearer in light wood, not prominent on account of 

 the lack of contrast of colour. Size, 1 or 1-2, with considerable variation in each ring in no particular 

 order; irregularly distributed, often running in oblique, straggling lines which occasionally reverse their 

 direction; mostly single, but joining up into compact strings of about 15 pores: numerous. 0-15 per 

 sq. mm. : round or oval : often contain resin or gum. Radial sec, prominent, coarse, open grooves 

 usually filled with dark contents : often reversed in adjoining bands. In tang. sec. usually sinuous. 



Rays. — Require the lens : size 5 : uniform and equidistant, much less than the width of the large 

 pores apart : avoiding or interrupted by the pores : very much waved : very numerous, 10-12 per mm. ; 

 denser than the ground tissue. In radial sec. scarcely perceptible : appear as fine, black (or lighter) shining 

 flakes under the lens. In tang, sec, extremely fine blackish lines: scarcely visible with lens, less than 

 01 mm. high. 



Rings. — Bands or zones of few or crowded pores, often in regular rows of oblique straggling lines : 

 often zones of black colour having no relation to the structure : also denser and softer zones of the ground 

 tissue causing contrast in the solid wood: contour waved. 



Soft-tissue. — Encircling the pores and compacting the oblique lin's. 



1905— MacMahon's " Merchantable Timbers of Queensland," Plates XLII and 

 XLIII (1905), shows " Sections of Queensland Woods," which are but of little value, 

 partly at least because of the imperfections of reproduction. 





